MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256d292e299d37f2d90e8fb3758b9c75f813c9ec310aa088b6c937a189f48ed048c
MD58a932a3862de0daf9703f72f52f74dfe
File Typevbs
Size1390.4 KB
First Seen2026-01-30
File Nameshim.vbs
TagsMassLogger, MSI-STEGO26, vbs

Malware Family: MassLogger

MassLogger, email keylogger'dır.

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

Threat Indicators (IOC)

  • SHA256: d292e299d37f2d90e8fb3758b9c75f813c9ec310aa088b6c937a189f48ed048c
  • MD5: 8a932a3862de0daf9703f72f52f74dfe

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: d292e299d37f2d90"
        threat_level = "medium"
        first_seen = "2026-01-30"
    condition:
        hash.sha256(0, filesize) == "d292e299d37f2d90e8fb3758b9c75f813c9ec310aa088b6c937a189f48ed048c"
}

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 d292e299d37f2d90e8fb3758b9c75f813c9ec310aa088b6c937a189f48ed048c # MD5 8a932a3862de0daf9703f72f52f74dfe
TypeValueNote
sha256 d292e299d37f2d90e8fb3758b9c75f813c9ec310aa088b6c937a189f48ed048c Sample:MassLogger
md5 8a932a3862de0daf9703f72f52f74dfe Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi