27 lines
985 B
Text
27 lines
985 B
Text
rule apt_win32_dll_rat_hiZorRAT
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{
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meta:
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dexcription = "Detects hiZor RAT"
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hash1 = "75d3d1f23628122a64a2f1b7ef33f5cf"
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hash2 = "d9821468315ccd3b9ea03161566ef18e"
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hash3 = "b9af5f5fd434a65d7aa1b55f5441c90a"
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ref1 = "http://www.threatgeek.com/2016/01/introducing-hi-zor-rat.html"
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reference = "https://www.fidelissecurity.com/sites/default/files/FTA_1020_Fidelis_Inocnation_FINAL.pdf"
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strings:
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// Part of the encoded User-Agent = Mozilla
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$s1 = { c7 [5] 40 00 62 00 c7 [5] 77 00 64 00 c7 [5] 61 00 61 00 c7 [5] 6c 00 }
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// XOR to decode User-Agent after string stacking 0x10001630
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$s2 = { 66 [7] 0d 40 83 ?? ?? 7c ?? }
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// XOR with 0x2E - 0x10002EF6
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$s3 = { 80 [2] 2e 40 3b ?? 72 ?? }
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$s4 = "CmdProcessExited" wide ascii
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$s5 = "rootDir" wide ascii
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$s6 = "DllRegisterServer" wide ascii
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$s7 = "GetNativeSystemInfo" wide ascii
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$s8 = "%08x%08x%08x%08x" wide ascii
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condition:
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(uint16(0) == 0x5A4D or uint32(0) == 0x4464c457f) and (all of them)
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}
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