Sliver | Threat Level: high | Type: C2 Framework

Cryptographic Identifiers

SHA256b77773a55dec95eeb1bb436f8be7d77292edba8481354de8ce30ccc01f92f50f
MD56b9e707cfa378c9fee43d111666a02c8
File Typexll
Size16.0 KB
First Seen2023-10-27
File NameVoicemail.xll
Tagssliver, xll

Malware Family: Sliver

Sliver, açık C2'dir.

TypeC2 Framework
Programming LanguageGo
Target PlatformWindows/Linux/macOS
C2 ProtocolHTTPS
PurposeAçık C2
First Seen Year2019

Threat Indicators (IOC)

  • SHA256: b77773a55dec95eeb1bb436f8be7d77292edba8481354de8ce30ccc01f92f50f
  • MD5: 6b9e707cfa378c9fee43d111666a02c8

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 Sliver_SHA256 {
    meta:
        description = "Sliver sample: b77773a55dec95ee"
        threat_level = "high"
        first_seen = "2023-10-27"
    condition:
        hash.sha256(0, filesize) == "b77773a55dec95eeb1bb436f8be7d77292edba8481354de8ce30ccc01f92f50f"
}

Sliver — Malware Profile

Sliver, Cobalt Strike alternatifidir.

Malware Type
C2Framework
Programming Language
Go
C2 Protocol
HTTPS
Target Systems
Windows/Linux/macOS

Capabilities & Behavior

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

IOC List (2 indicators)

IOC — Sliver
# SHA256 b77773a55dec95eeb1bb436f8be7d77292edba8481354de8ce30ccc01f92f50f # MD5 6b9e707cfa378c9fee43d111666a02c8
TypeValueNote
sha256 b77773a55dec95eeb1bb436f8be7d77292edba8481354de8ce30ccc01f92f50f Sample:Sliver
md5 6b9e707cfa378c9fee43d111666a02c8 Sample:Sliver
Tags
sliverc2 frameworkmalwarehighsha256hash-analizi