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SEKOIA_Typhon_Reborn_Stealer

Typhon Reborn v2 string based detection

MalwareSEKOIA.IO CommunityDetection Rule License 1.1Compiles with YARA-X
Author
Sekoia.io
Date
2023-05-15
Modified
2024-12-19
Score / Quality
75 / 80

What this rule detects

Typhon Reborn v2 string based detection

Targets: Windows PE.

It defines 2 patterns (2 text, 0 hex, 0 regex). YARA modules used: pe.

Summary generated from the rule's metadata and condition.

Rule source

Download .yar

Includes the imports needed to compile it on its own.

typhon-reborn-stealer.yarDetection Rule License 1.1
import "pe"

rule SEKOIA_Typhon_Reborn_Stealer
{
	meta:
		description = "Typhon Reborn v2 string based detection"
		author = "Sekoia.io"
		id = "aab7279b-b651-4092-b988-d186d0a433de"
		date = "2023-05-15"
		modified = "2024-12-19"
		reference = "https://github.com/SEKOIA-IO/Community"
		source_url = "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/yara_rules/typhon_reborn_stealer.yar#L3-L18"
		license_url = "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/LICENSE.md"
		logic_hash = "0db77a2e1d6b7274b0256fe469b72953c1b8598cbfc1715a43e5fbfa7899fe4c"
		score = 75
		quality = 80
		tags = ""
		version = "1.0"
		classification = "TLP:CLEAR"

	strings:
		$s1 = "api.telegram.org/bot" wide
		$s2 = "TyphonReborn Stealer v2 log!" wide

	condition:
		all of them and pe.is_pe
}

Strings (2 patterns)

IdentifierTypeValueModifiers
$s1text"api.telegram.org/bot"wide
$s2text"TyphonReborn Stealer v2 log!"wide

Condition

all of them and pe.is_pe

In plain words (Heuristic)

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

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References

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: aab7279b-b651-4092-b988-d186d0a433de

Metadata

version1.0
classificationTLP:CLEAR

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