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Ok so here is the deal I have been dealing with this computer virus for a couple nights now on a friends computer. The problem is the infection known as win64 sirefef.b it has caused me much trouble. I will first start off telling you the procedure I have been through: First off when I got the computer it did not boot so I pulled out my hirens boot cd and booted to a mini xp OS from there I proceeded to run Superantispyware. This was able to get rid of a vast majority of things and let the computer boot up. I then proceeded to boot the computer into safe mode and I ran malewarebytes and superantispyware again fully updated on both until it knocked out about another 50 or so infections. Now I have Microsoft Security Essentials (MSE) on the computer and it detects a the virus/rootkit known as win64 sirefef.b if I allow MSE to delete this infection then the computer no longer boots and throws up a bsod saying that compsrv is missing. I however restored the system to a date before removing the infection so my OS was once again bootable and proceeded to do these steps again. The computer still has win64 sirefef.b and I preventing MSE from deleting it currently. Also just fyi the infection does not allow any windows defender programs to run and it also redirects me from any microsoft websites. I would appreciate any help thanks.
I already did this as stated in the original post they do not detect the infection. I have done all the necessary scans I do a lot of computer repairs and have dealt with many infections/rootkits so I know what I am doing. I am kind of looking for help from an administrator/moderator for any helpful hints.