Infected by a trojan and cleaning it

[Cheekykid]

I recently got infected by a trojan after stupidly overtrusting my antivirus and my curious nature costed me. I cleaned my C with a format but two more hard drives are there which i haven't touched. Anyone knows how trojans works?

Any chance of the other hard drives still containing the server portion of the trojan that allows someone into my system? How do I make sure they are clean? I got tons of stuff in them. I doubt running a trojan remover would help since my antivirus didn't detect it in the first place, i doubt a trojan killer will.

 

[Duke]

I doubt they will be infected but run something like Malwarebytes and NOD32 trial over all disks.

 

[edscdk]

its only a program like ms word, if its not loaded it cannot do anything....

if I put your infect drive in my PC as a 2nd drive assuming i dont run anything or let anythign auto run it cannot get onto my PC...

 

[Cheekykid]

its only a program like ms word, if its not loaded it cannot do anything....

if I put your infect drive in my PC as a 2nd drive assuming i dont run anything or let anythign auto run it cannot get onto my PC...

so are you saying it cant be still sitting in one of the other drives?

Am paranoid and i think it can be still somewhere hidden in one of the hundreds folders i've got.

 

[Amp34]

Yeah, you shouldn't be able to infect yourself again unless you click on the file on another disk (if it is on another disk).

Just be wary though, some trojans can copy themselves into loads of other locations (such as p2p folders and even rar files so it's worth scanning the other disks.

If you find anything suspicious whilst wondering around the two folders that your AV doesn't pick up run it through novirusthanks or another AV website to see if it's anything dodgy.

 

[Cheekykid]

Yeah, you shouldn't be able to infect yourself again unless you click on the file on another disk (if it is on another disk).

Just be wary though, some trojans can copy themselves into loads of other locations (such as p2p folders and even rar files so it's worth scanning the other disks.

If you find anything suspicious whilst wondering around the two folders that your AV doesn't pick up run it through novirusthanks or another AV website to see if it's anything dodgy.

Seeing that AVG antivirus didn't detect the trojan i have concerns others might not be able as well. novirusthanks is good thanks for that. I now have novirusthanks, malwarebytes and kaspersky internet security 2011.

My router has built firewall however is it still necessary to use a software one?

 

[SiriusB]

Just use Windows Firewall. Very effective and will have almost zero impact on your system.

I don't rate AVG very highly but all AVs will miss stuff. Always worth checking with a separate product now and then. Many vendors have a free online scan you can use for this purpose.