Akira | Threat Level: high | Type: Ransomware

Cryptographic Identifiers

SHA256155cdb5063ac9780b373b16182c71cc1d34226e2bbe63e7d78dc5c5245aa7fbe
MD5187f81592bf37df8f5f8b2777a930257
File Typezip
Size2987.1 KB
First Seen2025-04-04
File Name21896875614.zip
Tagsakira, RustyStealer, zip

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: 155cdb5063ac9780b373b16182c71cc1d34226e2bbe63e7d78dc5c5245aa7fbe
  • MD5: 187f81592bf37df8f5f8b2777a930257

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: 155cdb5063ac9780"
        threat_level = "high"
        first_seen = "2025-04-04"
    condition:
        hash.sha256(0, filesize) == "155cdb5063ac9780b373b16182c71cc1d34226e2bbe63e7d78dc5c5245aa7fbe"
}

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 155cdb5063ac9780b373b16182c71cc1d34226e2bbe63e7d78dc5c5245aa7fbe # MD5 187f81592bf37df8f5f8b2777a930257
TypeValueNote
sha256 155cdb5063ac9780b373b16182c71cc1d34226e2bbe63e7d78dc5c5245aa7fbe Sample:Akira
md5 187f81592bf37df8f5f8b2777a930257 Sample:Akira
Tags
akiraransomwaremalwarehighsha256hash-analizi