MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA25658b59a4e5929f2f9e8284c463c50b38c0e08500bb32518978df82dbb91b0112d
MD525d18117f5b245a11ed5412fc0945f7c
File Typeps1
Size1086.9 KB
First Seen2026-04-22
File Nameupdate.ps1
Tagsexe, MassLogger, 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: 58b59a4e5929f2f9e8284c463c50b38c0e08500bb32518978df82dbb91b0112d
  • MD5: 25d18117f5b245a11ed5412fc0945f7c

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: 58b59a4e5929f2f9"
        threat_level = "medium"
        first_seen = "2026-04-22"
    condition:
        hash.sha256(0, filesize) == "58b59a4e5929f2f9e8284c463c50b38c0e08500bb32518978df82dbb91b0112d"
}

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 58b59a4e5929f2f9e8284c463c50b38c0e08500bb32518978df82dbb91b0112d # MD5 25d18117f5b245a11ed5412fc0945f7c
TypeValueNote
sha256 58b59a4e5929f2f9e8284c463c50b38c0e08500bb32518978df82dbb91b0112d Sample:MassLogger
md5 25d18117f5b245a11ed5412fc0945f7c Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi