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YARA · CAPE Sandbox (CAPEv2)

CAPE_Kpot

Kpot Stealer

MalwareCAPE Sandbox (CAPEv2)GNU General Public License v3.0Compiles with YARA-X
Author
kevoreilly
Date
2020-10-19
Score / Quality
75 / 70

What this rule detects

Kpot Stealer

Targets: Windows PE.

It defines 3 patterns (3 text, 0 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

kpot.yarGNU General Public License v3.0
rule CAPE_Kpot : FILE
{
	meta:
		description = "Kpot Stealer"
		author = "kevoreilly"
		id = "724fd6ac-e734-5952-b459-01cbaffdb89d"
		date = "2020-10-19"
		modified = "2020-10-19"
		reference = "https://github.com/kevoreilly/CAPEv2"
		source_url = "https://github.com/kevoreilly/CAPEv2/blob/6b15e76f28cd83fd1187da6c9aaaad2174255356/data/yara/CAPE/Kpot.yar#L1-L13"
		license_url = "https://github.com/kevoreilly/CAPEv2/blob/6b15e76f28cd83fd1187da6c9aaaad2174255356/LICENSE"
		logic_hash = "75abaab9a10e8ac8808425c389238285ab9bd9cb76f0cd03cc1e35b3ea0a1b0f"
		score = 75
		quality = 70
		tags = "FILE"
		cape_type = "Kpot Payload"

	strings:
		$format = "%s | %s | %s | %s | %s | %s | %s | %d | %s"
		$username = "username:s:"
		$os = "OS: %S x%d"

	condition:
		uint16( 0 ) == 0x5A4D and 2 of them
}

Strings (3 patterns)

IdentifierTypeValueModifiers
$formattext"%s | %s | %s | %s | %s | %s | %s | %d | %s"
$usernametext"username:s:"
$ostext"OS: %S x%d"

Condition

uint16( 0 ) == 0x5A4D and 2 of them

In plain words (Heuristic)

  • The file must start with “MZ” — a Windows executable (PE).
  • At least 2 patterns in the rule must match.

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References

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: 724fd6ac-e734-5952-b459-01cbaffdb89d

Metadata

cape_typeKpot Payload

Tags:FILE