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YARA · ditekSHen detection

DITEKSHEN_MALWARE_Win_Udprat

Detects UDPRat

MalwareUdpratditekSHen 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 UDPRat

Associated malware family: Udprat.

Targets: Windows PE.

It defines 8 patterns (8 text, 0 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

Download .yar
malware-win-udprat.yarBSD 2-Clause License
rule DITEKSHEN_MALWARE_Win_Udprat : FILE
{
	meta:
		description = "Detects UDPRat"
		author = "ditekSHen"
		id = "938fc9fd-4f08-5c23-8583-06083d2efe59"
		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#L9380-L9395"
		license_url = "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/LICENSE.txt"
		logic_hash = "4606b304d179148c6e44a0a8329675f2823f862a0944284cb646e5910659ea7c"
		score = 75
		quality = 75
		tags = "FILE"

	strings:
		$s1 = "\\code\\UDP\\Client\\" ascii
		$s2 = "ssdp:discover" ascii
		$s3 = ": Device:" ascii
		$s4 = "for the SNMP U encountered" ascii
		$s5 = "privat:InternetGatewayelink" fullword ascii
		$s6 = "schemas A jet error was" ascii
		$s7 = "msidentity" fullword ascii
		$s8 = "microsoftonliser-based Securi" ascii

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

Strings (8 patterns)

IdentifierTypeValueModifiers
$s1text"\\code\\UDP\\Client\\"ascii
$s2text"ssdp:discover"ascii
$s3text": Device:"ascii
$s4text"for the SNMP U encountered"ascii
$s5text"privat:InternetGatewayelink"fullword ascii
$s6text"schemas A jet error was"ascii
$s7text"msidentity"fullword ascii
$s8text"microsoftonliser-based Securi"ascii

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: 938fc9fd-4f08-5c23-8583-06083d2efe59

Tags:FILE

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