Trojan:Win64/Sirefef.D is one of the latest modifications of rootkit droppers. Technically it is essentially different from preceding C variant of the same malware.
There is already E variant reported, and many instances of the E modification have been observed in the wild. As victims keep providing the infection samples there is no doubt new modifications will be soon discovered. The rogue mutates promptly to escape deletion at least for the time that would be sufficient to download rootkit. Downloading rootkit through security vulnerabilities of targeted PC is a prior task for any variant of the trojan.
The above modifications attacks 64-bit systems. If your system class were for instance, 32-bit, other edition of the same trojan, e.g. TrojanDropper:Win32/Sirefef.B, would be appropriated by the attacker.
Removal of Trojan:Win64/Sirefef.D should not be made in haste. False positives often occur as the detection limits are rather vague. Click here to run free scan with the most reliable scanner adjusted to deal with potential threats with ultimate care to ensure precious files would not be corrupted and simultaneously properly quarantining objects that might cause damage to your PC. Needless to say, the free scanner will get rid of Trojan:Win64/Sirefef.D ,even if the malware is detected by alternate routine.
Type: Trojan horse
Detection date: 03.11.2010
URL: blocked\not detected
Trojan:Win64/Sirefef.D removal tool:
- Trojan:Win64/Sirefef.D may be difficult to remove manually;
- Trojan:Win64/Sirefef.D may download and install additional malware;
- Trojan:Win64/Sirefef.D may slow your PC;
- Trojan:Win64/Sirefef.D may generate popup ad’s;
- Trojan:Win64/Sirefef.D may cause system errors and slowdowns.