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YARA · CAPE Sandbox (CAPEv2)

CAPE_Pikexport

Pikabot export selection

MalwarePikabotCAPE Sandbox (CAPEv2)GNU General Public License v3.0Compiles with YARA-X
Author
kevoreilly
Date
2024-03-07
Modified
2024-03-12
Score / Quality
75 / 70

What this rule detects

Pikabot export selection

Associated malware family: Pikabot.

Targets: Windows PE.

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

Summary generated from the rule's metadata and condition.

Rule source

Download .yar
pikexport.yarGNU General Public License v3.0
rule CAPE_Pikexport : FILE
{
	meta:
		description = "Pikabot export selection"
		author = "kevoreilly"
		id = "7d2432f2-90ae-5ad0-b579-5789a1c14a08"
		date = "2024-03-07"
		modified = "2024-03-12"
		reference = "https://github.com/kevoreilly/CAPEv2"
		source_url = "https://github.com/kevoreilly/CAPEv2/blob/6b15e76f28cd83fd1187da6c9aaaad2174255356/analyzer/windows/data/yara/Pikabot.yar#L16-L28"
		license_url = "https://github.com/kevoreilly/CAPEv2/blob/6b15e76f28cd83fd1187da6c9aaaad2174255356/LICENSE"
		hash = "238dcc5611ed9066b63d2d0109c9b623f54f8d7b61d5f9de59694cfc60a4e646"
		logic_hash = "33f58703a0e40c2361343dbdcc17111aafbf5cc912393edda79005c6ec566f42"
		score = 75
		quality = 70
		tags = "FILE"
		cape_options = "export=$export"

	strings:
		$export = {55 8B EC 83 EC ?? C6 45 [2] C6 45 [2] C6 45 [2] C6 45 [2] C6 45}
		$pe = {B8 08 00 00 00 6B C8 00 8B 55 ?? 8B 45 ?? 03 44 0A 78 89 45 ?? 8B 4D ?? 8B 51 18 89 55 E8 C7 45 F8 00 00 00 00}

	condition:
		uint16( 0 ) == 0x5A4D and all of them
}

Strings (2 patterns)

IdentifierTypeValueModifiers
$exporthex{55 8B EC 83 EC ?? C6 45 [2] C6 45 [2] C6 45 [2] C6 45 [2] C6 45}
$pehex{B8 08 00 00 00 6B C8 00 8B 55 ?? 8B 45 ?? 03 44 0A 78 89 45 ?? 8B 4D ?? 8B 51 18 89 55 E8 C7 45 F8 00 00 00 00}

Condition

uint16( 0 ) == 0x5A4D and all of them

In plain words (Heuristic)

  • The file must start with “MZ” — a Windows executable (PE).
  • All patterns in the rule must match.

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References

Sample hashes

Hashes of samples the author lists in the rule's meta (look them up in your threat-intelligence platform).

  • 238dcc5611ed9066b63d2d0109c9b623f54f8d7b61d5f9de59694cfc60a4e646

Licence & attribution

Author: kevoreilly

Source repository: CAPE Sandbox (CAPEv2) @ 6b15e76f28

Licence: GNU General Public License v3.0 (repository licence)

Copyright notice: Cuckoo Sandbox is copyrighted by the Cuckoo Foundation.

Original rule

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

Rule id: 7d2432f2-90ae-5ad0-b579-5789a1c14a08

Metadata

cape_optionsexport=$export

Tags:FILE

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