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Indicators Malware Bypasses Browser Application-Bound Encryption Protections

217.156.122.75

TLP:CLEAR
Active

IPv4 Address

Description

A sophisticated 64-bit information-stealing malware named Remus has emerged as a direct evolution of the notorious Lumma Stealer. Following the doxxing of alleged Lumma core members between August and October 2025, developers created this advanced variant, with test builds appearing in September 2025 and live campaigns starting February 2026. Remus employs innovative techniques including injecting custom 51-byte shellcode into browser memory to extract protected master keys, bypassing Application-Bound Encryption in Chromium-based browsers. The malware utilizes EtherHiding through Ethereum smart contracts for command-and-control resolution, making infrastructure takedowns nearly impossible. It targets browser credentials, session cookies, and cryptocurrency wallets while implementing rigorous anti-analysis checks to evade security research environments.

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Details

Name / Label
Malware Bypasses Browser Application-Bound Encryption Protections
Pattern Type
STIX
Confidence
75%
Valid From
May 10, 2026 05:43
Total Sightings
0
Added
May 10, 2026
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Record an observation of 217.156.122.75

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