MassLogger | Threat Level: medium | Type: Infostealer
Cryptographic Identifiers
| SHA256 | b991f83d05ee93506c7296862d67ba6c4671cf1c5958aa317198c7fb2933984f |
|---|---|
| MD5 | e1f08a6eb65eafac00251070892cd657 |
| File Type | js |
| Size | 1501.1 KB |
| First Seen | 2026-03-11 |
| File Name | SampleOrderPO6947158.js |
| Tags | js, MassLogger |
Malware Family: MassLogger
MassLogger, email tabanlı keylogger'dır.
| Type | Infostealer |
|---|---|
| Programming Language | C#/.NET |
| Target Platform | Windows |
| C2 Protocol | SMTP/FTP |
| Purpose | Email keylogger |
| First Seen Year | 2020 |
Threat Indicators (IOC)
- SHA256:
b991f83d05ee93506c7296862d67ba6c4671cf1c5958aa317198c7fb2933984f - MD5:
e1f08a6eb65eafac00251070892cd657
You can verify all hash values of this sample on VirusTotal.
System Cleanup Guide
- Disconnect the system from the network immediately
- Yeni bir cihazdan banka hesabı, sosyal medya ve e-posta şifrelerini değiştirin
- Move crypto wallets to a new address and abandon the old ones
- Start a full scan with up-to-date antivirus
- Clear saved browser passwords and enable 2FA
- Sign out of all sessions on every affected service
YARA Rule Hints
rule MassLogger_SHA256 {
meta:
description = "MassLogger sample: b991f83d05ee9350"
threat_level = "medium"
first_seen = "2026-03-11"
condition:
hash.sha256(0, filesize) == "b991f83d05ee93506c7296862d67ba6c4671cf1c5958aa317198c7fb2933984f"
}
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
b991f83d05ee93506c7296862d67ba6c4671cf1c5958aa317198c7fb2933984f
# MD5
e1f08a6eb65eafac00251070892cd657
| Type | Value | Note |
|---|---|---|
| sha256 | b991f83d05ee93506c7296862d67ba6c4671cf1c5958aa317198c7fb2933984f | Sample:MassLogger |
| md5 | e1f08a6eb65eafac00251070892cd657 | Sample:MassLogger |