Fake 7-Zip downloads are turning home PCs into proxy nodes
Hacker News
February 14, 2026
AI-Generated Deep Dive Summary
A fake 7-Zip download site has been distributing malicious software that covertly turns infected computers into proxy nodes for cybercriminal activities. The fraudulent website, 7zip.com, mimics the legitimate 7-zip.org domain and tricks users into installing a Trojanized installer. This malware masquerades as a functional 7-Zip archiver but secretly installs components like Uphero.exe, hero.exe, and hero.dll in the C:\Windows\SysWOW64 directory. These files create persistent services that operate under System privileges, allowing attackers to exploit infected machines for proxy-related activities.
The attack chain begins with downloading the malicious installer from a lookalike domain, often referenced by third-party sources like YouTube tutorials or other trusted content. Once installed, the malware establishes itself by registering as a Windows service and manipulating firewall settings to ensure uninterrupted communication. It also gathers system information using WMI and transmits it via an external endpoint, enabling attackers to enroll infected devices into a network of proxy nodes for monetization purposes.
This incident underscores the risks of domain spoofing and trusted distribution channels. Attackers exploit small errors in legitimate content sources, such as incorrect links or typos, to distribute malware at scale. Users must remain vigilant by verifying software download sources, using antivirus tools, and avoiding untrusted installers. The case highlights how even minor oversights can lead to significant security breaches, emphasizing the importance of cybersecurity awareness in tech-savvy communities.
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Originally published on Hacker News on 2/14/2026