Trojan:Win32/sirefef.p Description:
Trojan:Win32/sirefef.p is one of the severe Win32/Sirefef trojan infections detected by Microsoft Security Essentials. Trojan:Win32/sirefef.p always affects system by changing infected machine Internet configuration and causing search failure(page cannot be found) or redirection to harmful domains, rogue program execution, and displaying pay-per-click advertisements to benefit its bad author. Trojan:Win32/sirefef.p downloads and installs random components to contracted system and execute malicious codes with system process which may finally use all your memory up. What’s worse, Trojan:Win32/sirefef.p is very tricky, it’s planted firmly to system even if it’s removed after a restart it keeps reappearing on a infected system. Besides, Trojan:Win32/sirefef.p mutates fast, it infects some files and deletion of them could lead to system files mistakenly deletion and then result in system function failure. To completely and effectively remove Trojan:Win32/sirefef.p virus, the manual removal method comes first. Read more →

