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DITEKSHEN_MALWARE_Win_Rootteamstealer

Detects RootTeam infostealer

MalwareRootteamstealerditekSHen 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 RootTeam infostealer

Associated malware family: Rootteamstealer.

Targets: Windows PE.

It defines 9 patterns (8 text, 0 hex, 1 regex).

Summary generated from the rule's metadata and condition.

Rule source

malware-win-rootteamstealer.yarBSD 2-Clause License
rule DITEKSHEN_MALWARE_Win_Rootteamstealer : FILE
{
	meta:
		description = "Detects RootTeam infostealer"
		author = "ditekSHen"
		id = "3b57ff3e-09cf-52be-ac7f-45ee832d70ab"
		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#L10401-L10417"
		license_url = "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/LICENSE.txt"
		logic_hash = "d1693865253067527d58c980653d550b55d022d5a394b88090a958e5d5818143"
		score = 75
		quality = 75
		tags = "FILE"

	strings:
		$x1 = "RootTeamStl" ascii
		$x2 = "Bot: https://t.me/rootteam_bot" ascii
		$x3 = "rootteam_bot" ascii
		$x4 = "Root Team" ascii
		$s1 = "-ldflags=\"-s -w -H windowsgui -X" ascii
		$s2 = "'RootTeamStl/vars." ascii
		$s3 = "{ Hostname string \"json:\\\"hostname\\\"\"; EncryptedUsername string \"json:\\\"encryptedUsername\\\"\"; EncryptedPassword string \"json:\\\"encryptedPassword\\\"\" }" ascii
		$s4 = "\\Program Files (x86)\\Steam\\config\\loginusers.vdf" ascii
		$s5 = /RootTeamStl\/managers\/(browser|coldwallets|discord|filegrabber|steam|userinformation)?/ ascii

	condition:
		uint16( 0 ) == 0x5a4d and ( 3 of ( $x* ) or ( 1 of ( $x* ) and 3 of ( $s* ) ) or 4 of ( $s* ) or 5 of them )
}

Strings (9 patterns)

IdentifierTypeValueModifiers
$x1text"RootTeamStl"ascii
$x2text"Bot: https://t.me/rootteam_bot"ascii
$x3text"rootteam_bot"ascii
$x4text"Root Team"ascii
$s1text"-ldflags=\"-s -w -H windowsgui -X"ascii
$s2text"'RootTeamStl/vars."ascii
$s3text"{ Hostname string \"json:\\\"hostname\\\"\"; EncryptedUsername string \"json:\\\"encryptedUsername\\\"\"; EncryptedPassword string \"json:\\\"encryptedPassword …ascii
$s4text"\\Program Files (x86)\\Steam\\config\\loginusers.vdf"ascii
$s5regex/RootTeamStl\/managers\/(browser|coldwallets|discord|filegrabber|steam|userinformation)?/ascii

Condition

uint16( 0 ) == 0x5a4d and ( 3 of ( $x* ) or ( 1 of ( $x* ) and 3 of ( $s* ) ) or 4 of ( $s* ) or 5 of them )

In plain words (Heuristic)

  • The file must start with “MZ” — a Windows executable (PE).
  • At least 3 patterns in ( $x* ) must match.
  • At least 1 patterns in ( $x* ) must match.
  • At least 3 patterns in ( $s* ) must match.
  • At least 4 patterns in ( $s* ) must match.
  • At least 5 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: 3b57ff3e-09cf-52be-ac7f-45ee832d70ab

Tags:FILE