MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256d871919b2e1d1ddd764bfbd7213cff8da7091d9238c12ceade5fae06d687a146
MD577268d07d8814a32906d70862360f23f
File Typevbs
Size23.5 KB
First Seen2026-04-14
File Nameroyy6453201.vbs
TagsMassLogger, vbs

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: d871919b2e1d1ddd764bfbd7213cff8da7091d9238c12ceade5fae06d687a146
  • MD5: 77268d07d8814a32906d70862360f23f

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: d871919b2e1d1ddd"
        threat_level = "medium"
        first_seen = "2026-04-14"
    condition:
        hash.sha256(0, filesize) == "d871919b2e1d1ddd764bfbd7213cff8da7091d9238c12ceade5fae06d687a146"
}

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 d871919b2e1d1ddd764bfbd7213cff8da7091d9238c12ceade5fae06d687a146 # MD5 77268d07d8814a32906d70862360f23f
TypeValueNote
sha256 d871919b2e1d1ddd764bfbd7213cff8da7091d9238c12ceade5fae06d687a146 Sample:MassLogger
md5 77268d07d8814a32906d70862360f23f Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi