79 lines
3 KiB
Text
79 lines
3 KiB
Text
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/*
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Yara Rule Set
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Author: Florian Roth
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Date: 2018-05-30
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Identifier: TA-18-149A
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Reference: https://www.us-cert.gov/ncas/alerts/TA18-149A
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*/
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/* Rule Set ----------------------------------------------------------------- */
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import "pe"
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rule APT_TA18_149A_Joanap_Sample1 {
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meta:
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description = "Detects malware from TA18-149A report by US-CERT"
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license = "Detection Rule License 1.1 https://github.com/Neo23x0/signature-base/blob/master/LICENSE"
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author = "Florian Roth (Nextron Systems)"
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reference = "https://www.us-cert.gov/ncas/alerts/TA18-149A"
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date = "2018-05-30"
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hash1 = "ea46ed5aed900cd9f01156a1cd446cbb3e10191f9f980e9f710ea1c20440c781"
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id = "a3a4f9a6-367d-5d99-bffb-f4ff03fa4a09"
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strings:
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$x1 = "cmd.exe /q /c net share adnim$" ascii
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$x2 = "\\\\%s\\adnim$\\system32\\%s" fullword ascii
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$s1 = "SMB_Dll.dll" fullword ascii
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$s2 = "%s User or Password is not correct!" fullword ascii
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$s3 = "perfw06.dat" fullword ascii
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condition:
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uint16(0) == 0x5a4d and filesize < 300KB and (
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pe.imphash() == "f0087d7b90876a2769f2229c6789fcf3" or
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1 of ($x*) or
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2 of them
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)
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}
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rule APT_TA18_149A_Joanap_Sample2 {
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meta:
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description = "Detects malware from TA18-149A report by US-CERT"
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license = "Detection Rule License 1.1 https://github.com/Neo23x0/signature-base/blob/master/LICENSE"
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author = "Florian Roth (Nextron Systems)"
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reference = "https://www.us-cert.gov/ncas/alerts/TA18-149A"
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date = "2018-05-30"
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hash1 = "077d9e0e12357d27f7f0c336239e961a7049971446f7a3f10268d9439ef67885"
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id = "9f4e6e6c-ee2b-5fa3-bf85-5a1652b38c52"
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strings:
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$s1 = "%SystemRoot%\\system32\\svchost.exe -k Wmmvsvc" fullword ascii
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$s2 = "%SystemRoot%\\system32\\svchost.exe -k SCardPrv" fullword ascii
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$s3 = "%SystemRoot%\\system32\\Wmmvsvc.dll" fullword ascii
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$s4 = "%SystemRoot%\\system32\\scardprv.dll" fullword ascii
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condition:
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uint16(0) == 0x5a4d and filesize < 600KB and (
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pe.imphash() == "e8cd12071a8e823ebc434c8ee3e23203" or
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2 of them
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)
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}
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rule APT_TA18_149A_Joanap_Sample3 {
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meta:
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description = "Detects malware from TA18-149A report by US-CERT"
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license = "Detection Rule License 1.1 https://github.com/Neo23x0/signature-base/blob/master/LICENSE"
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author = "Florian Roth (Nextron Systems)"
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reference = "https://www.us-cert.gov/ncas/alerts/TA18-149A"
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date = "2018-05-30"
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hash1 = "a1c483b0ee740291b91b11e18dd05f0a460127acfc19d47b446d11cd0e26d717"
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id = "1c2551bc-01dd-5b30-a4cc-703a868cde73"
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strings:
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$s1 = "mssvcdll.dll" fullword ascii
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$s2 = "https://www.google.com/index.html" fullword ascii
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$s3 = "LOGINDLG" fullword wide
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$s4 = "rundll" fullword ascii
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$s5 = "%%s\\%%s%%0%dd.%%s" fullword ascii
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$s6 = "%%s\\%%s%%0%dd" fullword ascii
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condition:
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uint16(0) == 0x5a4d and filesize < 200KB and (
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pe.imphash() == "f6f7b2e00921129d18061822197111cd" or
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3 of them
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)
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}
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