In early 2026, researchers from Malwarebytes identified a sophisticated "typosquatting" or lookalike website (7zip[.]com) that mimicked the official 7-Zip site. Users who downloaded the software from this fake domain received an installer that functioned correctly but silently dropped harmful files, including "AmarettoOverprice.7z," onto their systems. Technical Composition and Behavior
The file "AmarettoOverprice.7z" is a compressed archive that surfaced as part of a significant cybersecurity incident in early 2026. This file is a distributed via a trojanized version of the legitimate 7-Zip software. The Trojanized Installer Scheme AmarettoOverprice.7z
: The primary goal is to turn the victim’s computer into a proxy node. This allows third-party actors to route their own web traffic through the victim’s IP address, masking illegal activities. In early 2026, researchers from Malwarebytes identified a
Security experts advise that any system that has executed installers from 7zip[.]com should be considered fully compromised. Traditional antivirus software may initially miss these files because they are often signed with legitimate-looking (though unauthorized) certificates or use obfuscation to hide their true intent. AI responses may include mistakes. Learn more Fake 7-Zip downloads are turning home PCs into proxy nodes This file is a distributed via a trojanized
: The malware manipulates Windows Firewall settings and installs new services to ensure it remains active even after a system reboot.