AsyncRAT | Threat Level: high | Type: RAT

Cryptographic Identifiers

SHA2568f42c68b07e1aebe2603eb7c516fd416aa2bfc9e676b4f4661be182f31d2db82
MD5e48f56da909d5c82badb0792ed0ded8d
File Typez
Size441.3 KB
First Seen2026-05-20
File NamePO-2025-10024_xls.z
TagsAsyncRAT, z

Malware Family: AsyncRAT

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

TypeRAT
Programming Language.NET C#
Target PlatformWindows
C2 ProtocolTCP/SSL
PurposeUzaktan erişim, tuş kaydı
First Seen Year2019
AliasesAsyncClient

Threat Indicators (IOC)

  • SHA256: 8f42c68b07e1aebe2603eb7c516fd416aa2bfc9e676b4f4661be182f31d2db82
  • MD5: e48f56da909d5c82badb0792ed0ded8d

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: 8f42c68b07e1aebe"
        threat_level = "high"
        first_seen = "2026-05-20"
    condition:
        hash.sha256(0, filesize) == "8f42c68b07e1aebe2603eb7c516fd416aa2bfc9e676b4f4661be182f31d2db82"
}

AsyncRAT — Malware Profile

AsyncRAT, 2019'da acik kaynak olarak yayimlanan C# tabanli RAT ailesidir. Ekran yakalama, keylogger, dosya islemleri, HVNC ve plugin sistemine sahiptir. C2 AES-128-CBC ile sifrelenir, TCP uzerinden calisir. JS/PDF yemi ile dagitilir.

Malware Type
RAT
Programming Language
.NET C#
C2 Protocol
TCP/SSL
Target Systems
Windows
Also Known As (AKA)
AsyncClient

Technical Details

C# .NET, AES-128-CBC sifreleme, TCP port 6606/4449 (varsayilan), Mutex kontrol, Runtime assembly loading, Anti-analysis (VM check, Process listesi), HVNC, Keylogger, Stealer, Botnet modulu

Attribution / Threat Actor

Acik kaynak - orjinal gelistirici GitHub'da yayinladi; surekli siber suclu toplulugu tarafindan kullanilmaktadir. APT operasyonlari da dahil olmak uzere cok sayida farkli tehdit aktoru kullanmaktadir.

Capabilities & Behavior

Uzaktan Erişim & Kontrol
Keylogger
Ekran Görüntüsü
Webcam Erişimi
Dosya Yönetimi
Süreç Yönetimi
Komut Yürütme
Kalıcılık Mekanizması

IOC List (2 indicators)

IOC — AsyncRAT
# SHA256 8f42c68b07e1aebe2603eb7c516fd416aa2bfc9e676b4f4661be182f31d2db82 # MD5 e48f56da909d5c82badb0792ed0ded8d
TypeValueNote
sha256 8f42c68b07e1aebe2603eb7c516fd416aa2bfc9e676b4f4661be182f31d2db82
md5 e48f56da909d5c82badb0792ed0ded8d

C2 Servers (8 recorded servers for this family)

Address Type Port Protocol Status Country
microsoft.com domain — TCP active —
microsoft.com domain — TCP active —
microsoft.com domain — TCP active —
microsoft.com domain — TCP active —
microsoft.com domain — TCP active —
microsoft.com domain — TCP active —
microsoft.com domain — TCP active —
microsoft.com domain — TCP active —

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

Tags
asyncratratmalwarehighsha256analizzenginleştirilmiş