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DITEKSHEN_MALWARE_Win_Sidewalk

Detects SideWalk

MalwareSidewalkditekSHen 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 SideWalk

Associated malware family: Sidewalk.

Targets: Windows PE.

It defines 13 patterns (13 text, 0 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

Download .yar
malware-win-sidewalk.yarBSD 2-Clause License
rule DITEKSHEN_MALWARE_Win_Sidewalk : FILE
{
	meta:
		description = "Detects SideWalk"
		author = "ditekSHen"
		id = "ab82b83a-a279-555a-83c2-6340431b10da"
		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#L7860-L7880"
		license_url = "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/LICENSE.txt"
		logic_hash = "6885a1ad69d61fa5875ee0db949071e84390fc2db4307c412b32cd17c0806f6a"
		score = 75
		quality = 75
		tags = "FILE"

	strings:
		$s1 = "Decommit" fullword ascii
		$s2 = "Shellc0deRunner" fullword ascii
		$s3 = "shellc0de" fullword ascii
		$s4 = "C:\\Windows\\System32\\msdt.exe" fullword wide
		$s5 = "StartProcessWOPid" fullword ascii
		$s6 = "StartProcessWithParent" fullword ascii
		$m1 = "alloctype" fullword ascii
		$m2 = "ThreadIoPriority" fullword ascii
		$m3 = "PebAddress" fullword ascii
		$m4 = "dotnet.4.x64.dll" fullword wide
		$m5 = "LogonNetCredentialsOnly" fullword ascii
		$m6 = "ThreadIdealProcessor" fullword ascii
		$m7 = "LogonWithProfile" fullword ascii

	condition:
		uint16( 0 ) == 0x5a4d and ( 5 of ( $s* ) or all of ( $m* ) or ( 11 of them ) )
}

Strings (13 patterns)

IdentifierTypeValueModifiers
$s1text"Decommit"fullword ascii
$s2text"Shellc0deRunner"fullword ascii
$s3text"shellc0de"fullword ascii
$s4text"C:\\Windows\\System32\\msdt.exe"fullword wide
$s5text"StartProcessWOPid"fullword ascii
$s6text"StartProcessWithParent"fullword ascii
$m1text"alloctype"fullword ascii
$m2text"ThreadIoPriority"fullword ascii
$m3text"PebAddress"fullword ascii
$m4text"dotnet.4.x64.dll"fullword wide
$m5text"LogonNetCredentialsOnly"fullword ascii
$m6text"ThreadIdealProcessor"fullword ascii
$m7text"LogonWithProfile"fullword ascii

Condition

uint16( 0 ) == 0x5a4d and ( 5 of ( $s* ) or all of ( $m* ) or ( 11 of them ) )

In plain words (Heuristic)

  • The file must start with “MZ” — a Windows executable (PE).
  • All patterns in ( $m* ) must match.
  • At least 5 patterns in ( $s* ) must match.
  • At least 11 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: ab82b83a-a279-555a-83c2-6340431b10da

Tags:FILE

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