Information Security Stack Exchange is a question and answer site for information security professionals. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

One of my friends windows laptops (which I don't have access to right now) has in the recent past had a virus (where .doc files were converted to .exe files) which we dealt with.

Now when she right-clicks a folder to "send to compressed file" instead of creating a .zip file it creates an image file (jpg/png variety - will find out which). Is this known behaviour of a virus? I can't find anything anywhere about this kind of behaviour. Avast is not picking it up as a virus, but I can't imagine it being anything but a virus.

Where do I start to fix this?

share|improve this question

closed as off topic by AJ Henderson, Antony Vennard, Gilles, Terry Chia, AviD Mar 14 '13 at 9:48

Questions on Information Security Stack Exchange are expected to relate to Information security within the scope defined by the community. Consider editing the question or leaving comments for improvement if you believe the question can be reworded to fit within the scope. Read more about reopening questions here.If this question can be reworded to fit the rules in the help center, please edit the question.

image file in sense iso/nrg or jpeg/jpg? – BlueBerry - Vignesh4303 Mar 13 '13 at 12:15
See – AviD Mar 13 '13 at 12:43
I would assume, since you say that you dealt with the previous virus, that you "nuked it from orbit". Is this assumption correct, or is your friend's laptop still presumed infected? It is definitely one of the two. – AviD Mar 13 '13 at 12:45
I didn't nuke it from space, no! Just used avast to remove the virus, but yes that might be a solution! – Matt Parkins Mar 13 '13 at 15:09
No, the issue is that you know there was a severe problem (the virus infestation). You did not deal with it properly, and are trying to ignore it. Again, I don't know that it is caused by the virus, but I find it pointless to deal with the little things (like checking oil) before dealing with the big, critical things (like the cracked engine). Here's the thing: If it is a virus / malware issue, in some way, the advice you will get here is as I've said: Nuke It. If it is not virus/malware, the question would be off topic here... – AviD Mar 13 '13 at 19:49

type this command in run window

windows xp

rundll32 zipfldr.dll,RegisterSendto

windows 7

regsvr32 %windir%/system32/zipfldr.dll

and click ok....

share|improve this answer
Which would I do for vista? Thanks! – Matt Parkins Mar 13 '13 at 15:10
@MattParkins: Downgrade to XP, of course :P – Manishearth Mar 13 '13 at 15:23
Ah yes, apply brain. – Matt Parkins Mar 13 '13 at 15:30
please use second one. 7 solution – user827918 Mar 13 '13 at 17:24

Not the answer you're looking for? Browse other questions tagged or ask your own question.