Remcos | Threat Level: high | Type: RAT
Cryptographic Identifiers
| SHA256 | 81f5426df131002c8112c56d9a6907538de6bee78b0dc97c3ab62efa91aed0ab |
|---|---|
| MD5 | e5b5bd454bf9064ffc26ee17571f80fb |
| File Type | exe |
| Size | 921.0 KB |
| First Seen | 2026-03-19 |
| File Name | sx8sv.exe |
| Tags | exe, remcos, RemcosRAT |
Malware Family: Remcos
Remcos, kötüye kullanılan RAT'tır.
| Type | RAT |
|---|---|
| Programming Language | C++ |
| Target Platform | Windows |
| C2 Protocol | TCP/SSL |
| Purpose | Uzaktan izleme, tuş kaydı |
| First Seen Year | 2016 |
| Aliases | RemcosRAT |
Threat Indicators (IOC)
- SHA256:
81f5426df131002c8112c56d9a6907538de6bee78b0dc97c3ab62efa91aed0ab - MD5:
e5b5bd454bf9064ffc26ee17571f80fb
You can verify all hash values of this sample on VirusTotal.
System Cleanup Guide
- Disconnect the system from the network — unplug ethernet, disable Wi-Fi
- Terminate suspicious processes from Task Manager
- Run a full system scan with Malwarebytes or Kaspersky
- HKCU\Software\Microsoft\Windows\CurrentVersion\Run kayıtlarını kontrol edin
- Review newly created tasks in Task Scheduler
- Change all your account passwords from a clean device
- Gerekirse Windows'u yeniden yükleyin ve verilerinizi temiz bir yedeğe geri alın
YARA Rule Hints
rule Remcos_SHA256 {
meta:
description = "Remcos sample: 81f5426df131002c"
threat_level = "high"
first_seen = "2026-03-19"
condition:
hash.sha256(0, filesize) == "81f5426df131002c8112c56d9a6907538de6bee78b0dc97c3ab62efa91aed0ab"
}
Remcos — Malware Profile
RemcosRAT. SCAN DOC LOI.r00 multipart RAR. French LOI law lure. Five c2 substrings. Breaking-Security developer.
Malware Type
RAT
Programming Language
C++
C2 Protocol
TCP/SSL
Target Systems
Windows
Also Known As (AKA)
RemcosRAT
Capabilities & Behavior
Uzaktan Erişim & Kontrol
Keylogger
Ekran Görüntüsü
Webcam Erişimi
Dosya Yönetimi
Süreç Yönetimi
Komut Yürütme
Kalıcılık Mekanizması
IOC List (2 indicators)
IOC — Remcos
# SHA256
81f5426df131002c8112c56d9a6907538de6bee78b0dc97c3ab62efa91aed0ab
# MD5
e5b5bd454bf9064ffc26ee17571f80fb
| Type | Value | Note |
|---|---|---|
| sha256 | 81f5426df131002c8112c56d9a6907538de6bee78b0dc97c3ab62efa91aed0ab | Sample:Remcos |
| md5 | e5b5bd454bf9064ffc26ee17571f80fb | Sample:Remcos |
C2 Servers (3 recorded servers for this family)
| Address | Type | Port | Protocol | Status | Country |
|---|---|---|---|---|---|
| BreakingSecurity.net | domain | — | HTTP | active | — |
| pro.ip-api.com | domain | — | HTTP | active | — |
| UNKNOWN_HOST | unknown | 20343 | TCP | inactive | — |
C2 addresses are provided only from malware samples manually verified by the KEYDAL team. Commercial use is prohibited.