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Bogus website fakes virus scan, installs Venom Stealer instead

0
Medium
Published: Fri Mar 27 2026 (03/27/2026, 18:42:11 UTC)
Source: AlienVault OTX General

Description

A fake website impersonating Avast antivirus tricks users into downloading Venom Stealer malware by running a fake virus scan and prompting a malicious download disguised as a system cleaner. Venom Stealer steals browser credentials, session cookies, cryptocurrency wallets, and other sensitive data. It employs evasion techniques such as direct system calls and debugger checks to avoid detection. The stolen data is exfiltrated to a command-and-control server disguised as an analytics service. This campaign uses scare tactics and brand impersonation to deceive users into infecting their systems.

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 04/08/2026, 11:21:10 UTC

Technical Analysis

This threat involves a malicious website that impersonates the Avast antivirus brand to deceive users into running a fake virus scan. The site falsely reports threats and prompts users to download a malicious file posing as a system cleaner. This file is part of the Venom Stealer malware family, which targets sensitive information including browser credentials, session cookies, and cryptocurrency wallets. The malware uses evasion techniques such as direct system calls and debugger detection to avoid security tools. Exfiltration of stolen data is conducted to a command-and-control server masked as an analytics service. The campaign exemplifies a scare-and-fix scam leveraging brand trust to distribute malware.

Potential Impact

Successful infection results in theft of sensitive user data including browser credentials, session cookies, and cryptocurrency wallets. The malware's evasion techniques reduce the likelihood of detection by security software. Data exfiltration to a disguised command-and-control server enables attackers to collect stolen information for further malicious use. There are no known exploits in the wild beyond this campaign, and no direct patch or fix is applicable as this is a social engineering and malware distribution threat.

Mitigation Recommendations

No official patch or fix is available since this is a social engineering attack involving a fake website and malware distribution. Users should be educated to avoid downloading software from untrusted or suspicious websites, especially those impersonating legitimate brands. Security teams should update endpoint protection solutions to detect Venom Stealer and monitor for indicators such as the hashes and domain 'app-metrics-cdn.com' associated with this campaign. Blocking access to known malicious domains and educating users about scare-and-fix scams are recommended mitigations.

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Technical Details

Author
AlienVault
Tlp
white
References
["https://securityboulevard.com/2026/03/bogus-avast-website-fakes-virus-scan-installs-venom-stealer-instead/"]
Adversary
null
Pulse Id
69c6cf837e2aed0cef563493
Threat Score
null

Indicators of Compromise

Hash

ValueDescriptionCopy
hash0a32d6abea15f3bfe2a74763ba6c4ef5
hashecbeaa13921dbad8028d29534c3878503f45a82a09cf27857fa4335bd1c9286d

Domain

ValueDescriptionCopy
domainapp-metrics-cdn.com

Threat ID: 69d636951cc7ad14da612bfb

Added to database: 4/8/2026, 11:05:57 AM

Last enriched: 4/8/2026, 11:21:10 AM

Last updated: 4/9/2026, 4:45:39 AM

Views: 9

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