Akira | Threat Level: high | Type: Ransomware

Cryptographic Identifiers

SHA2567454191be1a95519697a68bdce4a90fec5aadcfe0871d8537135e2af5de8de8c
MD5f91cf21c1415ef1a90cff56e7dc7e88c
File Typeelf
Size3192.5 KB
First Seen2025-05-31
File Name7454191be1a95519697a68bdce4a90fec5aadcfe0871d8537135e2af5de8de8c
Tagsakira, elf, 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: 7454191be1a95519697a68bdce4a90fec5aadcfe0871d8537135e2af5de8de8c
  • MD5: f91cf21c1415ef1a90cff56e7dc7e88c

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: 7454191be1a95519"
        threat_level = "high"
        first_seen = "2025-05-31"
    condition:
        hash.sha256(0, filesize) == "7454191be1a95519697a68bdce4a90fec5aadcfe0871d8537135e2af5de8de8c"
}

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 7454191be1a95519697a68bdce4a90fec5aadcfe0871d8537135e2af5de8de8c # MD5 f91cf21c1415ef1a90cff56e7dc7e88c
TypeValueNote
sha256 7454191be1a95519697a68bdce4a90fec5aadcfe0871d8537135e2af5de8de8c Sample:Akira
md5 f91cf21c1415ef1a90cff56e7dc7e88c Sample:Akira
Tags
akiraransomwaremalwarehighsha256hash-analizi