Home Malware Programs Malware HPmal/ZAccess-A

HPmal/ZAccess-A

Posted: August 1, 2013

Threat Metric

Ranking: 8,979
Threat Level: 1/10
Infected PCs: 1,206
First Seen: August 1, 2013
Last Seen: October 16, 2023
OS(es) Affected: Windows

HPmal/ZAccess-A is a malware threat, which is a component of a new version of ZeroAccess malware. HPmal/ZAccess-A might be difficult to detect and remove from the infected computer by many anti-virus software. HPmal/ZAccess-A has persistence if it automatically reloads itself when the computer user logs off and logs back on, or when he/she reboot the PC. That makes HPmal/ZAccess-A more dangerous, as it generally serves the attackers for alot longer. But the authors of HPmal/ZAccess-A also use the right-to-left override (RLO) and several other non-printable Unicode characters in both file paths and registry entries to further avoid detection and removal of the ZeroAccess components. RLO is often used by malware authors to disguise the extension of malicious, executable files. HPmal/ZAccess-A drops the files into a new location by using the ACL (Access Control List) trick (the Unicode character trick). HPmal/ZAccess-A copies itself to two locations: in the %Program Files% folder, and in the user's local AppData area. Each copy is located in a folder that appears as though it is component of a Google software product, using non-printable Unicode characters that make it hard to notice on some versions of Windows. Mal/ZAccConf-A connects to the peer-to-peeer network and downloads modules that primarily perform click fraud.

Technical Details

Additional Information

The following URL's were detected:
onlinemanualsapp.org
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