Akira | Threat Level: high | Type: Ransomware

Cryptographic Identifiers

SHA25671b2f16e2dd93eec47e0c0d0c1b51a0bda61fe73190019f497932bea635437ac
MD573e86d3acd62c44df894192915952a5b
File Typeexe
Size14322.4 KB
First Seen2025-05-31
File Name71b2f16e2dd93eec47e0c0d0c1b51a0bda61fe73190019f497932bea635437ac
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: 71b2f16e2dd93eec47e0c0d0c1b51a0bda61fe73190019f497932bea635437ac
  • MD5: 73e86d3acd62c44df894192915952a5b

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: 71b2f16e2dd93eec"
        threat_level = "high"
        first_seen = "2025-05-31"
    condition:
        hash.sha256(0, filesize) == "71b2f16e2dd93eec47e0c0d0c1b51a0bda61fe73190019f497932bea635437ac"
}

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 71b2f16e2dd93eec47e0c0d0c1b51a0bda61fe73190019f497932bea635437ac # MD5 73e86d3acd62c44df894192915952a5b
TypeValueNote
sha256 71b2f16e2dd93eec47e0c0d0c1b51a0bda61fe73190019f497932bea635437ac Sample:Akira
md5 73e86d3acd62c44df894192915952a5b Sample:Akira
Tags
akiraransomwaremalwarehighsha256hash-analizi