Akira | Threat Level: high | Type: Ransomware

Cryptographic Identifiers

SHA256b3b8b39cc3b28c277b550d2f252b7034236c677f545d6a35e468be758aa5007e
MD5307c3eae012b8deab0091a6e27d44376
File Typeexe
Size1056.5 KB
First Seen2025-06-12
File Nameb3b8b39cc3b28c277b550d2f252b7034236c677f545d6a35e468be758aa5007e
Tagsakira, exe, Ransomware

Malware Family: Akira

Akira, Cisco VPN açıklarını hedefler.

TypeRansomware
Programming LanguageC++
Target PlatformWindows/Linux
C2 Protocol
PurposeCisco VPN ransomware
First Seen Year2023

Threat Indicators (IOC)

  • SHA256: b3b8b39cc3b28c277b550d2f252b7034236c677f545d6a35e468be758aa5007e
  • MD5: 307c3eae012b8deab0091a6e27d44376

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

System Cleanup Guide

  1. Sistemi ağdan DERHAL ayırın — diğer cihazlara yayılmayı durdurun
  2. Do not pay the ransom — there is no guarantee your files will be restored
  3. Quarantine the affected drives
  4. Kullanılan fidye yazılımı ailesini belirleyin (nomoreransom.org)
  5. Try available decryptor tools (the NoMoreRansom project)
  6. Report the incident to the authorities (cybercrime unit)
  7. Temiz bir yedekten kurtarın; yedeğiniz yoksa sürücüyü saklayın

YARA Rule Hints

rule Akira_SHA256 {
    meta:
        description = "Akira sample: b3b8b39cc3b28c27"
        threat_level = "high"
        first_seen = "2025-06-12"
    condition:
        hash.sha256(0, filesize) == "b3b8b39cc3b28c277b550d2f252b7034236c677f545d6a35e468be758aa5007e"
}

Akira — Malware Profile

Akira ransomware RaaS. akiralkzxzq Tor sizdirma sitesi. .akira uzantisi. akira_readme.txt fidye notu. SleepEx anti-debug.

Malware Type
Ransomware
Programming Language
C++
C2 Protocol
Target Systems
Windows/Linux

Technical Details

Ransomware ailesi: AES/RSA hibrid sifreleme, dosya uzantisi degistirme, shadow copy silme, C2 ile anahtar alis-verisi, fidye notu birakma, kullanici belgelerine odaklanma

Capabilities & Behavior

Dosya Şifreleme (AES/RSA)
Gölge Kopya Silme
Yedek Kaldırma
Fidye Notu Oluşturma
Kalıcılık Sağlama
Ağ Paylaşımı Şifreleme
Anti-Analiz Teknikleri
Çift Gasp (Data Leak)

IOC List (2 indicators)

IOC — Akira
# SHA256 b3b8b39cc3b28c277b550d2f252b7034236c677f545d6a35e468be758aa5007e # MD5 307c3eae012b8deab0091a6e27d44376
TypeValueNote
sha256 b3b8b39cc3b28c277b550d2f252b7034236c677f545d6a35e468be758aa5007e Sample:Akira
md5 307c3eae012b8deab0091a6e27d44376 Sample:Akira
Tags
akiraransomwaremalwarehighsha256hash-analizi