MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256382d9df30a0ef92ecd95ebec2d7efa6bda5a174c402eb729b688b4a93e66fd7a
MD5e7f254d621bd646c7fc883573bde2c3a
File Typejs
Size27.1 KB
First Seen2026-02-26
File Nameetkmy6kupbnt14m9hcekv2Ntfi.js
Tagsjs, MassLogger

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: 382d9df30a0ef92ecd95ebec2d7efa6bda5a174c402eb729b688b4a93e66fd7a
  • MD5: e7f254d621bd646c7fc883573bde2c3a

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: 382d9df30a0ef92e"
        threat_level = "medium"
        first_seen = "2026-02-26"
    condition:
        hash.sha256(0, filesize) == "382d9df30a0ef92ecd95ebec2d7efa6bda5a174c402eb729b688b4a93e66fd7a"
}

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 382d9df30a0ef92ecd95ebec2d7efa6bda5a174c402eb729b688b4a93e66fd7a # MD5 e7f254d621bd646c7fc883573bde2c3a
TypeValueNote
sha256 382d9df30a0ef92ecd95ebec2d7efa6bda5a174c402eb729b688b4a93e66fd7a Sample:MassLogger
md5 e7f254d621bd646c7fc883573bde2c3a Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi