HPmal/ZAccess-A
Posted: August 1, 2013
Threat Metric
The following fields listed on the Threat Meter containing a specific value, are explained in detail below:
Threat Level: The threat level scale goes from 1 to 10 where 10 is the highest level of severity and 1 is the lowest level of severity. Each specific level is relative to the threat's consistent assessed behaviors collected from SpyHunter's risk assessment model.
Detection Count: The collective number of confirmed and suspected cases of a particular malware threat. The detection count is calculated from infected PCs retrieved from diagnostic and scan log reports generated by SpyHunter.
Volume Count: Similar to the detection count, the Volume Count is specifically based on the number of confirmed and suspected threats infecting systems on a daily basis. High volume counts usually represent a popular threat but may or may not have infected a large number of systems. High detection count threats could lay dormant and have a low volume count. Criteria for Volume Count is relative to a daily detection count.
Trend Path: The Trend Path, utilizing an up arrow, down arrow or equal symbol, represents the level of recent movement of a particular threat. Up arrows represent an increase, down arrows represent a decline and the equal symbol represent no change to a threat's recent movement.
% Impact (Last 7 Days): This demonstrates a 7-day period change in the frequency of a malware threat infecting PCs. The percentage impact correlates directly to the current Trend Path to determine a rise or decline in the percentage.
Ranking: | 8,979 |
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Threat Level: | 1/10 |
Infected PCs: | 1,206 |
First Seen: | August 1, 2013 |
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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.
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