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Showing posts with label TDL4 purple haze. Show all posts
Showing posts with label TDL4 purple haze. Show all posts

Wednesday, February 1, 2012

TDL4 - Purple Haze (Pihar) Variant - sample and analysis


Lately things just don't seem the same
Actin' funny, but I don't know why
'Scuse me....... while I kiss the sky
 Jimi Hendrix "Purple Haze"
I recently ran into an interesting piece of malware that was downloaded on a victim's computer. I thought it was TDL/TDSS or maybe a new version of it as it had same components as TDL4 bootkit with a functionality of a mass scale PPC (pay-per-click) fraud. TDL had this functionality too and it is most likely spread by the same Russian-speaking gangs using the Blackhole exploit kit. It did not have the same type of config file that you may find in TDL4 (and first I could not find it at all). I call it "Purple Haze" thanks to the strings found in the code.

I shared it with Alexander Matrosov from ESET. He and Eugene Rodionov  analyzed it and posted an article on the ESET blog: "TDL4 reloaded: Purple Haze all in my brain" (edited by David Harley)
Eset also updated the removal tool for this variant - direct download link: OlmarikTDL4 remover