AsyncRAT — System5.vbs [21d540bd]

Cryptographic Identifiers

Malware Family: AsyncRAT

AsyncRAT, 2019'da sızdırılan açık kaynaklı RAT'tır.

Threat Indicators (IOC)

• SHA256: 21d540bd2d78b44c60915f81f42490dad986b557b287a2b81c38ce1f04c1afaf
• MD5: f5bc414e0201d56967a4380524e6c6ec

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 AsyncRAT_SHA256 {
    meta:
        description = "AsyncRAT sample: 21d540bd2d78b44c"
        threat_level = "high"
        first_seen = "2026-06-19"
    condition:
        hash.sha256(0, filesize) == "21d540bd2d78b44c60915f81f42490dad986b557b287a2b81c38ce1f04c1afaf"
}