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New YouTube Bot Malware Steals User Info

ID: 1fc166c6-7920-54c1-acc6-42d4f9b2c868

STIX ID: report--1fc166c6-7920-54c1-acc6-42d4f9b2c868

Feed Name: Cyble Blog

Threat Score
70/100

Date Published: 2025-05-21

Date Updated: 2026-07-20

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**YouTube bot malware analysis:** This technical report describes a .NET-based YouTube bot that automates views/likes/comments using Microsoft.Playwright, persists as AvastSecurity.exe in %appdata% with a scheduled task, performs anti-VM and process-mutex checks, harvests browser cookies/autofill/login data from Chromium-based browsers, and connects to a C&C server that issues commands (view/stopView/getLog/downloadAndRun/selfDestruct) and can fetch dependencies and additional payloads.

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