LockBit | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA2564b0b22299315c31d97f823dce6da039fcc9c9d2dbcf141feb218f9939164a1a3
MD585bfec102e0174e96e413f35bf29a1c7
File Typeexe
Size85258.0 KB
First Seen2026-04-14
File Nameyoukuclient_setup_8.1.0.1280.exe
Tagsexe, lockbit, Phorpiex, Trik

Malware Family: LockBit

LockBit, en fazla saldırıdan sorumlu ransomware'dir.

TypeRansomware
Programming LanguageC++
Target PlatformWindows/Linux
C2 Protocol
PurposeÇifte şantaj ransomware
First Seen Year2019
AliasesLockBit 3.0

Threat Indicators (IOC)

  • SHA256: 4b0b22299315c31d97f823dce6da039fcc9c9d2dbcf141feb218f9939164a1a3
  • MD5: 85bfec102e0174e96e413f35bf29a1c7

You can verify all hash values of this sample on VirusTotal.

System Cleanup Guide

  1. Sistemi ağdan DERHAL ayırın — diğer cihazlara yayılmayı durdurun
  2. Do not pay the ransom — there is no guarantee your files will be restored
  3. Quarantine the affected drives
  4. Kullanılan fidye yazılımı ailesini belirleyin (nomoreransom.org)
  5. Try available decryptor tools (the NoMoreRansom project)
  6. Report the incident to the authorities (cybercrime unit)
  7. Temiz bir yedekten kurtarın; yedeğiniz yoksa sürücüyü saklayın

YARA Rule Hints

rule LockBit_SHA256 {
    meta:
        description = "LockBit sample: 4b0b22299315c31d"
        threat_level = "critical"
        first_seen = "2026-04-14"
    condition:
        hash.sha256(0, filesize) == "4b0b22299315c31d97f823dce6da039fcc9c9d2dbcf141feb218f9939164a1a3"
}

LockBit — Malware Profile

LockBit 3.0 (LockBit Black). bl3.exe builder. CryptProtectMemory DPAPI key protection. WinRAR SFX delivery.

Malware Type
Ransomware
Programming Language
C++
C2 Protocol
Target Systems
Windows/Linux
Also Known As (AKA)
LockBit 3.0

Technical Details

C, RSA-2048 + AES-256 sifreleme (hibrid), vssadmin ile shadow copy silme, Active Directory enum, LockBit Builder ile ozel varyant uretimi, multi-threaded encryption, ransom note TXT/HTA

Capabilities & Behavior

Dosya Şifreleme (AES/RSA)
Gölge Kopya Silme
Yedek Kaldırma
Fidye Notu Oluşturma
Kalıcılık Sağlama
Ağ Paylaşımı Şifreleme
Anti-Analiz Teknikleri
Çift Gasp (Data Leak)

IOC List (2 indicators)

IOC — LockBit
# SHA256 4b0b22299315c31d97f823dce6da039fcc9c9d2dbcf141feb218f9939164a1a3 # MD5 85bfec102e0174e96e413f35bf29a1c7
TypeValueNote
sha256 4b0b22299315c31d97f823dce6da039fcc9c9d2dbcf141feb218f9939164a1a3 Sample:LockBit
md5 85bfec102e0174e96e413f35bf29a1c7 Sample:LockBit

C2 Servers (2 recorded servers for this family)

Address Type Port Protocol Status Country
35.227.107.189 ip 443 HTTPS sinkholed US
89.185.85.239 ip 443 HTTPS sinkholed NL

C2 addresses are provided only from malware samples manually verified by the KEYDAL team. Commercial use is prohibited.

Tags
lockbitransomwaremalwarecriticalsha256hash-analizi