BruteRatel | Threat Level: critical | Type: C2 Framework

Cryptographic Identifiers

SHA25637cd227f0d5aabed9eedbf30509b5354f075bea3af327c9c0bb8afba7b06e4f6
MD5eaa28f7fe80b8fc57649a3e2e4d52348
File Typedll
Size676.5 KB
First Seen2026-01-18
File Namecrashlog_decrypted.dll
TagsBruteRatel, dll, Plugx

Malware Family: BruteRatel

Brute Ratel, EDR atlatmak için tasarlandı.

TypeC2 Framework
Programming LanguageC
Target PlatformWindows
C2 ProtocolHTTPS
PurposeEDR atlatma C2
First Seen Year2021
AliasesBRC4

Threat Indicators (IOC)

  • SHA256: 37cd227f0d5aabed9eedbf30509b5354f075bea3af327c9c0bb8afba7b06e4f6
  • MD5: eaa28f7fe80b8fc57649a3e2e4d52348

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

System Cleanup Guide

  1. Disconnect the system from the network — unplug ethernet, disable Wi-Fi
  2. Terminate suspicious processes from Task Manager
  3. Run a full system scan with Malwarebytes or Kaspersky
  4. HKCU\Software\Microsoft\Windows\CurrentVersion\Run kayıtlarını kontrol edin
  5. Review newly created tasks in Task Scheduler
  6. Change all your account passwords from a clean device
  7. Gerekirse Windows'u yeniden yükleyin ve verilerinizi temiz bir yedeğe geri alın

YARA Rule Hints

rule BruteRatel_SHA256 {
    meta:
        description = "BruteRatel sample: 37cd227f0d5aabed"
        threat_level = "critical"
        first_seen = "2026-01-18"
    condition:
        hash.sha256(0, filesize) == "37cd227f0d5aabed9eedbf30509b5354f075bea3af327c9c0bb8afba7b06e4f6"
}

BruteRatel — Malware Profile

Brute Ratel C4 red team C2. steam_monitor DLL injection. TJC20MG session token. Registry persistence.

Malware Type
C2Framework
Programming Language
C
C2 Protocol
HTTPS
Target Systems
Windows
Also Known As (AKA)
BRC4

Capabilities & Behavior

Post-Exploitation
Lateral Movement
Mimikatz Entegrasyonu
Process Injection
Payload Staging
Domain Fronting
Covert Channel C2
Beacon İletişimi

IOC List (2 indicators)

IOC — BruteRatel
# SHA256 37cd227f0d5aabed9eedbf30509b5354f075bea3af327c9c0bb8afba7b06e4f6 # MD5 eaa28f7fe80b8fc57649a3e2e4d52348
TypeValueNote
sha256 37cd227f0d5aabed9eedbf30509b5354f075bea3af327c9c0bb8afba7b06e4f6 Sample:BruteRatel
md5 eaa28f7fe80b8fc57649a3e2e4d52348 Sample:BruteRatel
Tags
bruteratelc2 frameworkmalwarecriticalsha256hash-analizi