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Win32/Sirefef Possible Botnet Infection?


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#1 ra1n

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Posted 31 January 2014 - 03:12 PM

Yesterday I downloaded what i thought was a 300mb rar file in chrome turned out to be like 200kb (clearly a server). Avast alerted me and windows defender poped up saying it detected win32/sirefef (which is a botnet) So i disconnected from the net straight away. I don't know if it detects it because Avast/Chrome stopped it in the temp if it actually infected my system

I've performed scans with MalwareBytes, AdwCleaner and checked logs with DDS. Neither of these reported anything. Nothing suspicious in the resource monitor and no new keys in the registry.

Is it safe to assume I'm clean so I can reconnect to the net? Or could this have got really deep in my system??

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#2 Broni

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Posted 31 January 2014 - 03:47 PM

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ZeroAccess rootkit (aka sirefef) requires elevated help.

 

Please follow the instructions in THIS GUIDE starting at Step 6. If you cannot complete a step, skip it and continue.

Once the proper logs are created, then make a NEW TOPIC and post it HERE. Please include a description of your computer issues, what you have done to resolve them, and a link to this topic.

If you can produce at least some of the logs, then please create the new topic and explain what happens when you try to create the log(s) that you couldn't get. If you cannot produce any of the logs, then still post the topic and explain that you followed the Prep. Guide, were unable to create the logs, and describe what happens when you try to create the logs.

It would be helpful if you post a note here once you have completed the steps in the guide and have started your topic in malware removal. Good luck and be patient.

If HelpBot replies to your topic, PLEASE follow Step One so it will report your topic to the team members.


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#3 ra1n

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Posted 31 January 2014 - 03:50 PM

Like I said,nothing in the DDS logs whstsever.i'll post them though.. I didnt execute anything either but windows defender did pop up saying to remove. But I assume you follow a book...

Edited by ra1n, 31 January 2014 - 03:51 PM.


#4 hamluis

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Posted 31 January 2014 - 04:56 PM

Reference:  http://www.bleepingcomputer.com/forums/t/522763/win32sirefef-possible-botnet-infection/?fromsearch=1 .

 

Now that you have properly posted a malware log topic, you should NOT make further changes to your computer (install/uninstall programs, use special fix tools, delete files, edit the registry, etc) unless advised by a MRT Team member, nor should you ask for help elsewhere. Doing so can result in system changes which may not show in the log you already posted. Further, any modifications you make on your own may cause confusion for the helper assisting you and could complicate the malware removal process which would extend the time it takes to clean your computer.

From this point on, the MRT Team should be the only members that you take advice from, until they have verified your log as clean.

Please be patient. It may take a while to get a response because the MRT Team members are EXTREMELY busy working logs posted before yours. They are volunteers who will help you out as soon as possible. Once you have made your post and are waiting, please DO NOT make another reply until it has been responded to by a member of the MRT Team. Generally the staff checks the forum for postings that have 0 replies as this makes it easier for them to identify those who have not been helped. If you post another response there will be 1 reply. A team member, looking for a new log to work may assume another MRT Team member is already assisting you and not open the thread to respond.

It may take several days to get a response but your log will be reviewed and answered as soon as possible. I advise checking your topic once a day for responses as the e-mail notification system is unreliable.

If HelpBot replies to your topic, PLEASE follow Step One so it will report your topic to the team members.

To avoid confusion, I am closing this topic.

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