55 lines
2.1 KiB
Text
55 lines
2.1 KiB
Text
/*
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Yara Rule Set
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Author: Florian Roth
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Date: 2016-04-09
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Identifier: APT 6 Malware
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*/
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rule APT6_Malware_Sample_Gen : FILE {
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meta:
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description = "Rule written for 2 malware samples that communicated to APT6 C2 servers"
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author = "Florian Roth (Nextron Systems)"
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reference = "https://otx.alienvault.com/pulse/56c4d1664637f26ad04e5b73/"
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date = "2016-04-09"
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modified = "2023-01-06"
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score = 80
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hash1 = "321ec239bfa6927d39155ef5f10741ed786219489bbbb1dc8fee66e22f9f8e80"
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hash2 = "7aef130b19d1f940e4c4cee6efe0f190f1402d2e0f741ee605c77518a04cb6d7"
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id = "142d2714-f7bf-5725-bf7e-9497be7ed234"
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strings:
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/* Specific strings from samples */
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$x2 = "SPCK!it is a [(?riddle?) wrapped in a {mystery}] inside an <enigma>!" fullword ascii
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$x3 = "636C7369643A46334430443336462D323346382D343638322D413139352D373443393242303344344146" fullword ascii
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/* Malware Strings */
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$s1 = "Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)" fullword ascii
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$s2 = "DUMPTHIN" fullword ascii
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$s3 = "\"C:\\WINDOWS\\system32\\" ascii
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$s4 = "window.eval(f.decodeURIComponent(a));" fullword ascii
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$s5 = "/tbedrs.dll" fullword ascii
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$s6 = "NSISDL/1.2 (Mozilla)" fullword ascii
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$s7 = "NSIS_Inetc (Mozilla)" fullword ascii
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$s8 = "/logos.gif" fullword ascii
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$s9 = "synflood" fullword ascii
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$s10 = "IconFile=C:\\WINDOWS\\system32\\SHELL32.dll" fullword ascii
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$s11 = "udpflood" fullword ascii
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$s12 = "shellcode" fullword ascii
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$s13 = "&PassWord=" fullword ascii
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$s14 = "SystemPropertiesProtection.exe" fullword ascii
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$s15 = "SystemPropertiesRemote.exe" fullword ascii
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/* C2 Server user by APT 6 group */
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$c1 = "jobcall.org" ascii
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$c2 = "sportsinfinite.com" ascii
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$c3 = "milsatcom.us" ascii
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$c4 = "geographicphotographer.com" ascii
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$c5 = "snowsmooth.com" ascii
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$c6 = "goodre.net" ascii
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$c7 = "gloflabs.com" ascii
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condition:
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(
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uint16(0) == 0x5a4d and filesize < 1000KB and
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( ( 1 of ($x*) and 3 of ($s*) ) or 1 of ($c*) )
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) or
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( 6 of them )
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}
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