MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA2562ae443f6a0a5bb22b68ce64e4a388680fc6a8790b3676df62d008abbb342094b
MD59ce5b4c57017db38795892f54eaaecae
File Typejs
Size1592.8 KB
First Seen2026-02-19
File Nameรายละเอียดของที่ต้องการ.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: 2ae443f6a0a5bb22b68ce64e4a388680fc6a8790b3676df62d008abbb342094b
  • MD5: 9ce5b4c57017db38795892f54eaaecae

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: 2ae443f6a0a5bb22"
        threat_level = "medium"
        first_seen = "2026-02-19"
    condition:
        hash.sha256(0, filesize) == "2ae443f6a0a5bb22b68ce64e4a388680fc6a8790b3676df62d008abbb342094b"
}

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 2ae443f6a0a5bb22b68ce64e4a388680fc6a8790b3676df62d008abbb342094b # MD5 9ce5b4c57017db38795892f54eaaecae
TypeValueNote
sha256 2ae443f6a0a5bb22b68ce64e4a388680fc6a8790b3676df62d008abbb342094b Sample:MassLogger
md5 9ce5b4c57017db38795892f54eaaecae Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi