Trojan:Win32/Sirefef.AB
Posted: December 13, 2012
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.
| Threat Level: | 9/10 |
|---|---|
| Infected PCs: | 13 |
| First Seen: | December 13, 2012 |
|---|---|
| OS(es) Affected: | Windows |
Trojan:Win32/Sirefef.AB is a rootkit Trojan that causes unwanted redirects of the hacked Internet browser to malicious websites used by attackers to make money from the pay-per-click technique. Trojan:Win32/Sirefef.AB hijacks the targeted web browser and makes changes to the browser settings. Trojan:Win32/Sirefef.AB changes search results in any search engine to web-links irrelevant to initial queries and redirects affected PC users to suspicious websites. Trojan:Win32/Sirefef.AB might be difficult to detect and remove from the affected computer system by many security software. Trojan:Win32/Sirefef.AB may also be used by attackers to distribute rogue security applications to vulnerable computers.
Technical Details
File System Modifications
Tutorials: If you wish to learn how to remove malware components manually, you can read the tutorials on how to find malware, kill unwanted processes, remove malicious DLLs and delete other harmful files. Always be sure to back up your PC before making any changes.
The following files were created in the system:de66cbef71c97f93c842a62514703f67
File name: de66cbef71c97f93c842a62514703f67Size: 210.95 KB (210952 bytes)
MD5: de66cbef71c97f93c842a62514703f67
Detection count: 56
Group: Malware file
Last Updated: March 5, 2013
f38c5da81c4b99fc693e19c129522041
File name: f38c5da81c4b99fc693e19c129522041Size: 222.2 KB (222208 bytes)
MD5: f38c5da81c4b99fc693e19c129522041
Detection count: 55
Group: Malware file
Last Updated: March 5, 2013
MSHTA.EXE
File name: MSHTA.EXESize: 172.03 KB (172033 bytes)
MD5: 9f5ce11f95922de2c86291bdd7153cf5
Detection count: 54
File type: Executable File
Mime Type: unknown/EXE
Group: Malware file
Last Updated: March 5, 2013
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