MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256e65ca8cd1fd6d9d2883e800cf2a2c1c9cd7f70d82e02de4780f2ce38d0c18d60
MD5d321c4f7ea03e49af6e52348502ac20c
File Typeps1
Size1088.8 KB
First Seen2026-04-28
File Name2TEI43Q1.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: e65ca8cd1fd6d9d2883e800cf2a2c1c9cd7f70d82e02de4780f2ce38d0c18d60
  • MD5: d321c4f7ea03e49af6e52348502ac20c

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: e65ca8cd1fd6d9d2"
        threat_level = "medium"
        first_seen = "2026-04-28"
    condition:
        hash.sha256(0, filesize) == "e65ca8cd1fd6d9d2883e800cf2a2c1c9cd7f70d82e02de4780f2ce38d0c18d60"
}

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 e65ca8cd1fd6d9d2883e800cf2a2c1c9cd7f70d82e02de4780f2ce38d0c18d60 # MD5 d321c4f7ea03e49af6e52348502ac20c
TypeValueNote
sha256 e65ca8cd1fd6d9d2883e800cf2a2c1c9cd7f70d82e02de4780f2ce38d0c18d60 Sample:MassLogger
md5 d321c4f7ea03e49af6e52348502ac20c Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi