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YARA · ditekSHen detection

DITEKSHEN_MALWARE_Win_Imminentrat

Detects ImminentRAT

MalwareImminentratditekSHen detectionBSD 2-Clause LicenseCompiles with YARA-X
Author
ditekSHen
Date
2020-11-06
Modified
2024-11-01
Score / Quality
75 / 75

What this rule detects

Detects ImminentRAT

Associated malware family: Imminentrat.

Targets: Windows PE.

It defines 16 patterns (16 text, 0 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

Download .yar
malware-win-imminentrat.yarBSD 2-Clause License
rule DITEKSHEN_MALWARE_Win_Imminentrat : FILE
{
	meta:
		description = "Detects ImminentRAT"
		author = "ditekSHen"
		id = "99831b32-d8a0-5814-bf41-491f607ee825"
		date = "2020-11-06"
		modified = "2024-11-01"
		reference = "https://github.com/ditekshen/detection"
		source_url = "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/yara/malware.yar#L2971-L2994"
		license_url = "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/LICENSE.txt"
		logic_hash = "f959fd28e818b17c962fcd5bb99fa5ac0058f22494950e0200f139703f3e756a"
		score = 75
		quality = 75
		tags = "FILE"

	strings:
		$x1 = "abuse@imminentmethods.net" ascii
		$x2 = "Imminent-Monitor-" ascii
		$x3 = "AddressChangeListener" fullword ascii
		$x4 = "SevenZipHelper" fullword ascii
		$x5 = "WrapNonExceptionThrows" fullword ascii
		$s1 = "_ENABLE_PROFILING" wide
		$s2 = "Anti-Virus: {0}" wide
		$s3 = "File downloaded & executed" wide
		$s4 = "Chat - You are speaking with" wide
		$s5 = "\\Imminent\\Plugins" wide
		$s6 = "\\Imminent\\Path.dat" wide
		$s7 = "\\Imminent\\Geo.dat" wide
		$s8 = "DisableTaskManager = {0}" wide
		$s9 = "This client is already mining" wide
		$s10 = "Couldn't get AV!" wide
		$s11 = "Couldn't get FW!" wide

	condition:
		uint16( 0 ) == 0x5a4d and ( 4 of ( $x* ) or 5 of ( $s* ) )
}

Strings (16 patterns)

IdentifierTypeValueModifiers
$x1text"abuse@imminentmethods.net"ascii
$x2text"Imminent-Monitor-"ascii
$x3text"AddressChangeListener"fullword ascii
$x4text"SevenZipHelper"fullword ascii
$x5text"WrapNonExceptionThrows"fullword ascii
$s1text"_ENABLE_PROFILING"wide
$s2text"Anti-Virus: {0}"wide
$s3text"File downloaded & executed"wide
$s4text"Chat - You are speaking with"wide
$s5text"\\Imminent\\Plugins"wide
$s6text"\\Imminent\\Path.dat"wide
$s7text"\\Imminent\\Geo.dat"wide
$s8text"DisableTaskManager = {0}"wide
$s9text"This client is already mining"wide
$s10text"Couldn't get AV!"wide
$s11text"Couldn't get FW!"wide

Condition

uint16( 0 ) == 0x5a4d and ( 4 of ( $x* ) or 5 of ( $s* ) )

In plain words (Heuristic)

  • The file must start with “MZ” — a Windows executable (PE).
  • At least 4 patterns in ( $x* ) must match.
  • At least 5 patterns in ( $s* ) must match.

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References

Licence & attribution

Author: ditekSHen

Source repository: ditekSHen detection @ e76c93dcde

Licence: BSD 2-Clause License (repository licence)

Copyright notice: Copyright 2021 by ditekSHen (https://github.com/ditekshen/detection).

Original rule

Mirrored via YARA Forge 20260927, which prefixes rule names with the source and adds normalised meta fields.

Rule id: 99831b32-d8a0-5814-bf41-491f607ee825

Tags:FILE

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