MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA25641603a8a3a5b620ce0c103d68e277b611a4651dc83cf0e34e3a949db71a4a5de
MD56601fb8c753fc181dd7802b6d09d4a64
File Typeps1
Size1188.0 KB
First Seen2026-04-29
File Name5E2NWZZZ.ps1
TagsMassLogger, ps1

Malware Family: MassLogger

MassLogger, email tabanlı keylogger'dır.

TypeInfostealer
Programming LanguageC#/.NET
Target PlatformWindows
C2 ProtocolSMTP/FTP
PurposeEmail keylogger
First Seen Year2020

Threat Indicators (IOC)

  • SHA256: 41603a8a3a5b620ce0c103d68e277b611a4651dc83cf0e34e3a949db71a4a5de
  • MD5: 6601fb8c753fc181dd7802b6d09d4a64

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

System Cleanup Guide

  1. Disconnect the system from the network immediately
  2. Yeni bir cihazdan banka hesabı, sosyal medya ve e-posta şifrelerini değiştirin
  3. Move crypto wallets to a new address and abandon the old ones
  4. Start a full scan with up-to-date antivirus
  5. Clear saved browser passwords and enable 2FA
  6. Sign out of all sessions on every affected service

YARA Rule Hints

rule MassLogger_SHA256 {
    meta:
        description = "MassLogger sample: 41603a8a3a5b620c"
        threat_level = "medium"
        first_seen = "2026-04-29"
    condition:
        hash.sha256(0, filesize) == "41603a8a3a5b620ce0c103d68e277b611a4651dc83cf0e34e3a949db71a4a5de"
}

MassLogger — Malware Profile

MassLogger credential stealer. PT2600000043.js Portekiz fatura lurü. CommonJS obfuscation. dispatch configuration data.

Malware Type
Infostealer
Programming Language
C#/.NET
C2 Protocol
SMTP/FTP
Target Systems
Windows

Capabilities & Behavior

Tarayıcı Kimlik Bilgileri
Çerez Hırsızlığı
Kripto Cüzdan Çalma
Sistem Bilgisi
Ekran Görüntüsü
FTP/SSH İstemci Şifreleri
E-posta İstemcisi Çalma
Veri Sızıntısı

IOC List (2 indicators)

IOC — MassLogger
# SHA256 41603a8a3a5b620ce0c103d68e277b611a4651dc83cf0e34e3a949db71a4a5de # MD5 6601fb8c753fc181dd7802b6d09d4a64
TypeValueNote
sha256 41603a8a3a5b620ce0c103d68e277b611a4651dc83cf0e34e3a949db71a4a5de Sample:MassLogger
md5 6601fb8c753fc181dd7802b6d09d4a64 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi