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DITEKSHEN_MALWARE_Win_Strongpity

Detects StrongPity

MalwareStrongpityditekSHen 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 StrongPity

Associated malware family: Strongpity.

Targets: Windows PE.

It defines 7 patterns (7 text, 0 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

Download .yar
malware-win-strongpity.yarBSD 2-Clause License
rule DITEKSHEN_MALWARE_Win_Strongpity : FILE
{
	meta:
		description = "Detects StrongPity"
		author = "ditekSHen"
		id = "9dcc5edb-5c86-5412-af63-f88d488d5829"
		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#L3706-L3720"
		license_url = "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/LICENSE.txt"
		logic_hash = "e92147966cd68152eb536b805c4918462f72f64280d1b3df800bb41266aa232f"
		score = 75
		quality = 75
		tags = "FILE"

	strings:
		$s1 = "Boundary%08X" ascii wide
		$s2 = "Content-Disposition: form-data; name=\"file\";" fullword ascii
		$s3 = "%sfilename=\"%ls\"" fullword ascii
		$s4 = "name=%ls&delete=" fullword ascii
		$s5 = "Content-Type: application/octet-stream" fullword ascii
		$s6 = "cmd.exe /C ping" wide
		$s7 = "& rmdir /Q /S \"" wide

	condition:
		uint16( 0 ) == 0x5a4d and 5 of them
}

Strings (7 patterns)

IdentifierTypeValueModifiers
$s1text"Boundary%08X"ascii wide
$s2text"Content-Disposition: form-data; name=\"file\";"fullword ascii
$s3text"%sfilename=\"%ls\""fullword ascii
$s4text"name=%ls&delete="fullword ascii
$s5text"Content-Type: application/octet-stream"fullword ascii
$s6text"cmd.exe /C ping"wide
$s7text"& rmdir /Q /S \""wide

Condition

uint16( 0 ) == 0x5a4d and 5 of them

In plain words (Heuristic)

  • The file must start with “MZ” — a Windows executable (PE).
  • At least 5 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: 9dcc5edb-5c86-5412-af63-f88d488d5829

Tags:FILE

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