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SEKOIA_Spyware_And_Bahamut

Detect Bahamut's spyware based on common information gathering function names

GenericSEKOIA.IO CommunityDetection Rule License 1.1Compiles with YARA-X
Author
Sekoia.io
Date
2022-11-23
Modified
2024-12-19
Score / Quality
75 / 80

What this rule detects

Detect Bahamut's spyware based on common information gathering function names

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

Summary generated from the rule's metadata and condition.

Rule source

Download .yar
spyware-and-bahamut.yarDetection Rule License 1.1
rule SEKOIA_Spyware_And_Bahamut
{
	meta:
		description = "Detect Bahamut's spyware based on common information gathering function names"
		author = "Sekoia.io"
		id = "d416997e-baf1-412c-bf39-905a6e19b65e"
		date = "2022-11-23"
		modified = "2024-12-19"
		reference = "https://www.welivesecurity.com/2022/11/23/bahamut-cybermercenary-group-targets-android-users-fake-vpn-apps/"
		source_url = "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/yara_rules/spyware_and_bahamut.yar#L1-L20"
		license_url = "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/LICENSE.md"
		hash = "c51dc2132c830c560aaeae4bf48e5f0d28c84b36d27840b5c2ba170d87f4afa5"
		hash = "d7e2cf642b236dba9ba0cbe5a9dc28baf22477973d5ce163e21ec40f5f26e078"
		logic_hash = "5f44c938fed9b32eaf183be979a67e0c7fde409e72875359105ad7ffb393893d"
		score = 75
		quality = 80
		tags = ""
		version = "1.0"
		classification = "TLP:CLEAR"

	strings:
		$ = "FbDao"
		$ = "SignalDao"
		$ = "conionDao"

	condition:
		all of them
}

Strings (3 patterns)

IdentifierTypeValueModifiers
$text"FbDao"
$text"SignalDao"
$text"conionDao"

Condition

all of them

In plain words (Heuristic)

  • 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).

  • c51dc2132c830c560aaeae4bf48e5f0d28c84b36d27840b5c2ba170d87f4afa5
  • d7e2cf642b236dba9ba0cbe5a9dc28baf22477973d5ce163e21ec40f5f26e078

Licence & attribution

Author: Sekoia.io

Source repository: SEKOIA.IO Community @ a438a5901a

Licence: Detection Rule License 1.1 (repository licence)

Original rule

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

Rule id: d416997e-baf1-412c-bf39-905a6e19b65e

Metadata

version1.0
classificationTLP:CLEAR

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