Akira | Threat Level: high | Type: Ransomware

Cryptographic Identifiers

SHA25684a815dc2911e4585d3c969bf240c13825560f3bcb389d77cb52e0d7fca044df
MD5671fb7f86ab618565ee8dbc58e061dc4
File Typeexe
Size1056.5 KB
First Seen2025-05-31
File Name84a815dc2911e4585d3c969bf240c13825560f3bcb389d77cb52e0d7fca044df
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: 84a815dc2911e4585d3c969bf240c13825560f3bcb389d77cb52e0d7fca044df
  • MD5: 671fb7f86ab618565ee8dbc58e061dc4

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: 84a815dc2911e458"
        threat_level = "high"
        first_seen = "2025-05-31"
    condition:
        hash.sha256(0, filesize) == "84a815dc2911e4585d3c969bf240c13825560f3bcb389d77cb52e0d7fca044df"
}

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 84a815dc2911e4585d3c969bf240c13825560f3bcb389d77cb52e0d7fca044df # MD5 671fb7f86ab618565ee8dbc58e061dc4
TypeValueNote
sha256 84a815dc2911e4585d3c969bf240c13825560f3bcb389d77cb52e0d7fca044df Sample:Akira
md5 671fb7f86ab618565ee8dbc58e061dc4 Sample:Akira
Tags
akiraransomwaremalwarehighsha256hash-analizi