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55 lines
1.6 KiB
Plaintext
55 lines
1.6 KiB
Plaintext
/*
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Yara Rule Set
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Author: Florian Roth
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Date: 2018-01-05
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Identifier: NetWire
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Reference: https://pastebin.com/8qaiyPxs
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*/
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/* Rule Set ----------------------------------------------------------------- */
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rule Susp_Indicators_EXE {
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meta:
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description = "Detects packed NullSoft Inst EXE with characteristics of NetWire RAT"
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author = "Florian Roth"
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reference = "https://pastebin.com/8qaiyPxs"
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date = "2018-01-05"
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score = 60
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hash1 = "6de7f0276afa633044c375c5c630740af51e29b6a6f17a64fbdd227c641727a4"
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strings:
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$s1 = "Software\\Microsoft\\Windows\\CurrentVersion"
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$s2 = "Error! Bad token or internal error" fullword ascii
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$s3 = "CRYPTBASE" fullword ascii
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$s4 = "UXTHEME" fullword ascii
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$s5 = "PROPSYS" fullword ascii
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$s6 = "APPHELP" fullword ascii
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condition:
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uint16(0) == 0x5A4D and uint32(uint32(0x3c)) == 0x4550 and filesize < 700KB and all of them
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}
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rule Suspicious_BAT_Strings {
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meta:
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description = "Detects a string also used in Netwire RAT auxilliary"
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author = "Florian Roth"
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score = 60
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reference = "https://pastebin.com/8qaiyPxs"
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date = "2018-01-05"
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strings:
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$s1 = "ping 192.0.2.2 -n 1" ascii
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condition:
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filesize < 600KB and 1 of them
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}
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rule Malicious_BAT_Strings {
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meta:
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description = "Detects a string also used in Netwire RAT auxilliary"
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author = "Florian Roth"
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score = 60
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reference = "https://pastebin.com/8qaiyPxs"
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date = "2018-01-05"
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strings:
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$s1 = "call :deleteSelf&exit /b"
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condition:
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filesize < 600KB and 1 of them
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}
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