291 lines
13 KiB
Text
291 lines
13 KiB
Text
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import "pe"
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rule brc4_core {
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meta:
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version = "first version"
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author = "@ninjaparanoid"
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reference = "https://github.com/paranoidninja/Brute-Ratel-C4-Community-Kit/blob/main/deprecated/brc4.yara"
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date = "2022-11-19"
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description = "Hunts for known strings used in Badger till release v1.2.9 when not in an encrypted state"
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id = "3a702d21-392f-5b7d-90a7-eb053d259b32"
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strings:
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$coreStrings1 = "CLOSED"
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$coreStrings2 = "LISTENING"
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$coreStrings3 = "SYN_SENT"
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$coreStrings4 = "SYN_RCVD"
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$coreStrings5 = "ESTABLISHED"
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$coreStrings6 = "FIN_WAIT1"
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$coreStrings7 = "FIN_WAIT2"
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$coreStrings8 = "CLOSE_WAIT"
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$coreStrings9 = "CLOSING"
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$coreStrings10 = "LAST_ACK"
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$coreStrings11 = "TIME_WAIT"
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$coreStrings12 = "DELETE_TCB"
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$coreStrings13 = "v4.0.30319"
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$coreStrings14 = "bYXJm/3#M?:XyMBF"
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$coreStrings15 = "ServicesActive"
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$coreStrings16 = "coffee"
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$coreStrings17 = "Until Admin Unlock"
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$coreStrings18 = "alertable"
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$coreStrings19 = "%02d%02d%d_%02d%02d%2d%02d_%s"
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$coreStrings20 = "<Left-Mouse>;"
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$coreStrings21 = "<Right-Mouse>;"
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$coreStrings22 = "<Cancel>;"
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$coreStrings23 = "<Middle-Mouse>;"
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$coreStrings24 = "<X1-Mouse>;"
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$coreStrings25 = "<X2-Mouse>;"
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$coreStrings26 = "<BackSpace>;"
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$coreStrings27 = "<Enter>;"
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$coreStrings28 = "<Shift>;"
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$coreStrings29 = "<CTRL>;"
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$coreStrings30 = "<ALT>;"
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$coreStrings31 = "<Pause>;"
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$coreStrings32 = "<Caps-Lock>;"
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$coreStrings33 = "<ESC>;"
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$coreStrings34 = "<Page-Up>;"
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$coreStrings35 = "<Page-Down>;"
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$coreStrings36 = "<End>;"
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$coreStrings37 = "<Home-Key>;"
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$coreStrings38 = "<Left-Arrow>;"
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$coreStrings39 = "<Up-Arrow>;"
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$coreStrings40 = "<Right-Arrow>;"
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$coreStrings41 = "<Down-Arrow>;"
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$coreStrings42 = "<Select>;"
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$coreStrings43 = "<Print-Key>;"
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$coreStrings44 = "<Print-Screen>;"
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$coreStrings45 = "<INS>;"
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$coreStrings46 = "<Delete>;"
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$coreStrings47 = "<Help>;"
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$coreStrings48 = "<Left-Windows-Key>;"
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$coreStrings49 = "<Right-Windows-Key>;"
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$coreStrings50 = "<Computer-Sleep>;"
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$coreStrings51 = "<F1>;"
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$coreStrings52 = "<F2>;"
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$coreStrings53 = "<F3>;"
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$coreStrings54 = "<F4>;"
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$coreStrings55 = "<F5>;"
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$coreStrings56 = "<F6>;"
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$coreStrings57 = "<F7>;"
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$coreStrings58 = "<F8>;"
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$coreStrings59 = "<F9>;"
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$coreStrings60 = "<F10>;"
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$coreStrings61 = "<F11>;"
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$coreStrings62 = "<F12>;"
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$coreStrings63 = "<F13>;"
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$coreStrings64 = "<F14>;"
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$coreStrings65 = "<F15>;"
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$coreStrings66 = "<F16>;"
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$coreStrings67 = "<F17>;"
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$coreStrings68 = "<F18>;"
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$coreStrings69 = "<F19>;"
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$coreStrings70 = "<F20>;"
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$coreStrings71 = "<F21>;"
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$coreStrings72 = "<F22>;"
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$coreStrings73 = "<F23>;"
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$coreStrings74 = "<F24>;"
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$coreStrings75 = "<Num-Lock>;"
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$coreStrings76 = "<Scroll-Lock>;"
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$coreStrings77 = "<Control>;"
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$coreStrings78 = "<Menu>;"
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$coreStrings79 = "<Volume Mute>;"
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$coreStrings80 = "<Volume Down>;"
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$coreStrings81 = "<Volume Up>;"
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$coreStrings82 = "<New Track>;"
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$coreStrings83 = "<Previous Track>;"
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$coreStrings84 = "<Play/Pause>;"
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$coreStrings85 = "<Play>;"
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$coreStrings86 = "<Zoom>;"
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$coreStrings87 = "%02X-%02X-%02X-%02X-%02X-%02X"
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$coreStrings88 = "%02d%02d%d_%02d%02d%2d%02d.png"
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$coreStrings89 = "%02d-%02d-%d %02d:%02d:%2d"
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$coreStrings90 = "%ls%s%ls%s%ls%s%ls%lu%ls%s%s"
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$coreStrings91 = "%ls%ls%ls%ls%ls%ls%ls%ls%ls%ls%ls%ls%ls%d%ls%lu%ls"
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$coreStrings92 = "bhttp_x64.dll"
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$coreStrings93 = " - %-45ls : %d"
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$coreStrings94 = " - %-45ls : %ls"
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$coreStrings95 = " - %-45ls : %llu"
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$coreStrings96 = " - %-45ls : %u"
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$coreStrings97 = " - %-45ls : %f"
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$coreStrings98 = " - %-45ls : %S"
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$coreStrings99 = " - Path: %ls"
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$coreStrings100 = " - Enabled: %ls"
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$coreStrings101 = " - Last Run: %ls"
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$coreStrings102 = " - Next Run: %ls"
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$coreStrings103 = " - Current State: %ls"
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$coreStrings104 = " - XML Output:"
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$coreStrings105 = " - Error fetching xml"
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$coreStrings106 = "[+] Name: %ls"
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$coreStrings107 = "[+] Task: %ld"
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$coreStrings108 = " - Name: %ls"
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$coreStrings109 = "BYTE data[] = {"
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$coreStrings110 = "[+] %s Password History:"
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$coreStrings111 = "[+] Object RDN: "
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$coreStrings112 = "[+] SAM Username: "
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$coreStrings113 = "[+] User Principal Name: "
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$coreStrings114 = "[+] UAC: %08x ["
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$coreStrings115 = "[+] Password last change: "
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$coreStrings116 = "[+] SID history:"
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$coreStrings117 = "[+] Object SID: "
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$coreStrings118 = "[+] Object RID: %u"
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$coreStrings119 = "[-] E: 0x%08x (%u) - %s"
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$coreStrings120 = "[-] E: no item!"
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$coreStrings121 = "[-] E: bad version (%u)"
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$coreStrings122 = "[-] E: 0x%08x (%u)"
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$coreStrings123 = "[-] E: (%08x)"
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$coreStrings124 = "[-] E: DRS Extension Size (%u)"
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$coreStrings125 = "[-] E: No DRS Extension"
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$coreStrings126 = "[-] E: DRSBind (%u)"
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$coreStrings127 = "[-] E: DC '%s' not found"
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$coreStrings128 = "[-] E: Version (%u)"
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$coreStrings129 = "[-] E: 0x%08x"
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$coreStrings130 = "[-] E: DC not found"
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$coreStrings131 = "[-] E: Binding DC!"
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$coreStrings132 = "[-] E: %u"
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$coreStrings133 = "[-] E: Domain not found"
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$coreStrings134 = "[+] Syncing DC: %ls"
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$coreStrings135 = "========================================|"
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$coreStrings136 = "[-] E: NCChangesReply"
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$coreStrings137 = "[-] E: GetNCChanges (%u)"
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$coreStrings138 = "[-] E: GetNCChanges: 0x%08x"
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$coreStrings139 = "[-] E: ASN1"
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$coreStrings140 = "[dsyn]"
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$coreStrings141 = "[+] size : %lu"
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$coreStrings142 = "[+] malloc (RX) : 0x%p"
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$coreStrings143 = "[+] malloc (RW) : 0x%p"
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$coreStrings144 = "[+] size : %lu"
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$coreStrings145 = "[+] mapview (RX): 0x%p"
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$coreStrings146 = "[+] mapview (RW): 0x%p"
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$coreStrings147 = "[-] Invalid thread"
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$coreStrings148 = "[+] Thread start : 0x%p"
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$coreStrings149 = "[+] Thread Id : %lu"
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$coreStrings150 = " - expires at: %02d-%02d-%02d %02d:%02d:%02d"
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$coreStrings151 = "%-30ls%-30ls%ls"
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$coreStrings152 = "%-30S*%-29ls%04d hours"
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$coreStrings153 = "%-30S%-30ls%04d hours"
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$coreStrings154 = "[+] User is privileged"
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$coreStrings155 = "[+] Members of [%ls] in %ls"
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$coreStrings156 = "[+] Members of [%ls]"
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$coreStrings157 = "p[+] Alertable thread: %lu"
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$coreStrings158 = "[-] E: No Alertable threads"
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$coreStrings159 = "[!] QAPC not supported on existing process"
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$coreStrings160 = "[+] PID (%S) => %lu"
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$coreStrings161 = "[+] PPID => %lu"
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$coreStrings162 = "[+] PID (%S) => %lu"
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$coreStrings163 = "[+] Args => (%S)"
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$coreStrings164 = "[+] PPID => %lu"
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$coreStrings165 = "[+] %S => PID: %lu"
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$coreStrings166 = "[+] %S => PID (Suspended): %lu:%lu"
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$coreStrings167 = "[+] SYS key: "
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$coreStrings168 = "[+] SAM key: "
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$coreStrings169 = "v2.0.50727"
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$coreStrings170 = "v4.0.30319"
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$coreStrings171 = "[+] Dotnet: v"
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$coreStrings172 = "[+] Socks started"
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$coreStrings173 = "[-] Socks stopped and Profile cleared"
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$coreStrings174 = "[+] Stasis: %d:%d"
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$coreStrings175 = "<DIR>?%ls?%02d-%02d-%d %02d:%02d"
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$coreStrings176 = "<DIR>?%ls"
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$coreStrings177 = "<FILE>?%ls?%02d-%02d-%d %02d:%02d?%lld bytes"
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$coreStrings178 = "<FILE>?%ls"
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$coreStrings179 = "[+] listing %ls"
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$coreStrings180 = "%02d-%02d-%d %02d:%02d <DIR> %ls"
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$coreStrings181 = "%02d-%02d-%d %02d:%02d <FILE> %ls %lld bytes"
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$coreStrings182 = "[+] PID: %d"
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$coreStrings183 = "[+] Impersonated: '%S\\%S'"
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$coreStrings184 = "[+] Killed: %lu"
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$coreStrings185 = "%ls%-8ls | %-8ls | %-6ls | %-30ls | %ls"
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$coreStrings186 = "[pstree] %S"
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$coreStrings187 = "6%d?%d?%S?%ls?%ls"
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$coreStrings188 = "%-8d | %-8d | %-6S | %-30ls | %ls"
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$coreStrings189 = "%d?%d?N/A?N/A?%ls"
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$coreStrings190 = "%-8d | %-8d | %-6ls | %-30ls | %ls"
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$coreStrings191 = "[-] Child Process???"
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$coreStrings192 = "[+] PID: %lu"
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$coreStrings193 = "[+] Impersonated '%ls'"
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$coreStrings194 = "[-] Duplicate listener: %S"
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$coreStrings195 = "[+] TCP listener: %S"
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$coreStrings196 = "[TCP] [%S]-<>-[%S]"
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$coreStrings197 = "[+] Added to Token Vault: %ls"
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$coreStrings198 = "[-] E: Invalid Arch: 0x%X"
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$coreStrings199 = "[+] Searching [0x%02X] permission"
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$coreStrings200 = "[-] SPN not found: %ls"
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$coreStrings201 = "[-] Invalid SPN: %S"
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$coreStrings202 = "[+] SPN: %ls"
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$coreStrings203 = "[+] Start Address: (%p)"
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$coreStrings204 = "[!] Invalid Address"
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$coreStrings205 = "[!] Invalid PID: %S"
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$coreStrings206 = "[+] PID: %lu"
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$coreStrings207 = "[+] TID: %lu"
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$coreStrings208 = "[+] T-Handle: 0x%X"
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$coreStrings209 = "[+] Suspend count: %lu"
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$coreStrings210 = "[+] %-24ls%-24ls%-24ls"
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$coreStrings211 = "%-66ls%-46ls%ls"
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$coreStrings212 = " ============================================================= ============================================= =================================================="
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$coreStrings213 = "[+] Elevated Privilege"
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$coreStrings214 = "[-] Restricted Privilege"
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$coreStrings215 = "[+] Task-%d => %S (%S %%)"
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$coreStrings216 = "[Tasks] %02d => 0x%02X 0x%02X"
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$coreStrings217 = "[*] No active tasks"
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$coreStrings218 = "[-] Child: NA"
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$coreStrings219 = "[+] Child: %S"
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$coreStrings220 = "[TCP] Task-%d => %S"
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$coreStrings221 = "[+] Malloc: %lu"
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$coreStrings222 = "[+] ThreadEx: %lu"
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$coreStrings223 = "[+] %-30ls: %S"
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$coreStrings224 = "[+] %-30ls: %S"
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$coreStrings225 = "[+] %-30ls: "
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$coreStrings226 = "[+] %-30ls: %ls"
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$coreStrings227 = " - %-6S %-22S %-22S %S"
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$coreStrings228 = " - %-6S %-22S %-22S"
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$coreStrings229 = " - 0x%lu [%02X-%02X-%02X-%02X-%02X-%02X] %S"
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$coreStrings230 = " %-21S%-17S%-17S%-11S%-10S"
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$coreStrings231 = " - %-19S%-17S%-17S%-11ld%-9ld"
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$coreStrings232 = " - %-30ls: %I64dMB/%I64dMB"
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$coreStrings233 = " - %-30ls: %lu MB"
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$coreStrings234 = "[+] CM: Already Running"
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$coreStrings235 = "[+] CM: Running"
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$coreStrings236 = "[+] CM: Started"
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$coreStrings237 = "[*] Task-%02d [Thread: %lu]"
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$coreStrings238 = "+-------------------------------------------------------------------+"
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$coreStrings239 = "[+] Session ID %lu => %ls: %ls\\%ls"
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$coreStrings240 = "[+] Enumerating PID: %lu [%ls]"
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$coreStrings241 = "[+] Captured Handle (PID: %lu)"
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$coreStrings242 = "[+] Initiated NTFS transaction"
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$coreStrings243 = "\\??\\C:\\Users\\Public\\cache.txt"
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$coreStrings244 = "[+] Dump Size: %d Mb"
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$coreStrings245 = "bhttp_x64.dll"
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$coreStrings246 = "bYXJm/3#M?:XyMBF"
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$coreStrings247 = "SeDebugPrivilege"
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condition:
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20 of them
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}
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rule brc4_shellcode {
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meta:
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version = "last version"
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author = "@ninjaparanoid"
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description = "Hunts for shellcode opcode used in Badger x86/x64 till release v1.2.9"
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arch_context = "x64"
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reference = "https://github.com/paranoidninja/Brute-Ratel-C4-Community-Kit/blob/main/deprecated/brc4.yara"
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date = "2022-11-19"
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id = "7e899d2f-332b-53f7-b9e6-cfde2bce6223"
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strings:
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$shellcode_x64_Start = { 55 50 53 51 52 56 57 41 50 41 51 41 52 41 53 41 54 41 55 41 56 41 57 }
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$shellcode_x64_End = { 5B 5E 5F 41 5C 41 5D 41 5E 41 5F 5D C3 }
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$shellcode_x64_StageEnd = { 5C 41 5F 41 5E 41 5D 41 5C 41 5B 41 5A 41 59 41 58 5F 5E 5A 59 5B 58 5D C3 }
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$funcHash1 = { 5B BC 4A 6A }
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$funcHash2 = { 5D 68 FA 3C }
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$funcHash3 = { AA FC 0D 7C }
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$funcHash4 = { 8E 4E 0E EC }
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$funcHash5 = { B8 12 DA 00 }
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$funcHash6 = { 07 C4 4C E5 }
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$funcHash7 = { BD CA 3B D3 }
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$funcHash8 = { 89 4D 39 8C }
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$hashFuncx64 = { EB 20 0F 1F 44 00 00 44 0F B6 C8 4C 89 DA 41 83 E9 20 4D 63 C1 4B 8D 04 10 49 39 CB 74 21 49 83 C3 01 41 89 C2 }
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$hashFuncx86 = { EB 07 8D 74 26 00 83 C2 01 0F B6 31 C1 C8 0D 89 F1 8D 5C 30 E0 01 F0 80 F9 61 89 D1 0F 43 C3 39 D7 75 E3 }
|
||
|
|
condition:
|
||
|
|
(pe.machine == pe.MACHINE_AMD64 and (2 of ($shellcode*) or all of ($funcHash*) and $hashFuncx64))
|
||
|
|
or
|
||
|
|
(pe.machine == pe.MACHINE_I386 and (all of ($funcHash*) and $hashFuncx86))
|
||
|
|
}
|