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Sirefef Trojan keeps rebooting PC [Closed]


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#1
CoolHi

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Hi, I am new to these forums and I needed help to remove the Trojan Sirefef from my PC, I just got the virus today... I am unable to do anything since my PC keeps rebooting every 60 seconds, and so Microsoft Security Essentials can't remove it.

My Microsoft Security Essentials tells me I have multiple instances of these viruses. It says I have:
Trojan:Win32/Sirefef.AL
Trojan:Win32/Sirefef.AQ
Trojan:Win32/Sirefef

I am also unable to fully run OTL since the computer reboots while the scan is in progess

Help ASAP would be really appreciated. Thanks!

Edited by CoolHi, 29 August 2012 - 08:16 PM.

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#2
CoolHi

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Please any help would be great!
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#3
maliprog

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Hello CoolHi and welcome to my office here at G2G! :)

My nick is maliprog and I'll be your technical support on this issue. Before we start please read my notes carefully:

NOTES:
  • Malware removal is NOT instantaneous, most infections require several courses of action to completely eradicate.
  • Absence of symptoms does not always mean the computer is clean
  • Kindly follow my instructions in the order posted. Order is crucial in cleaning process.
  • Please DO NOT run any scans or fix on your own without my direction.
  • Please read all of my response through at least once before attempting to follow the procedures described.
  • If there's anything you don't understand or isn't totally clear, please come back to me for clarification.
  • Please do not attach any log files to your replies unless I specifically ask you. Instead please copy and paste it to include the log in your reply.
  • You must reply within 3 days or your topic will be closed

Step 1

Since you can't use your system in Normal mode we will do this fixes in Safe mode with networking

Please restart in safe mode:

  • If the computer is running, shut down Windows, and then turn off the power
  • Start tapping the F8 key. The Windows Advanced Options Menu appears. If you begin tapping the F8 key too soon, some computers display a "keyboard error" message. To resolve this, restart the computer and try again.
  • Ensure that the Safe mode with networking option is selected.
  • Press Enter. The computer then begins to start in Safe mode with networking.


Step 2

Download the latest version of TDSSKiller from here and save it to your Desktop.

  • Doubleclick on TDSSKiller.exe to run the application, then click on Change parameters.
  • Check the boxes beside:

    • Verify Driver Digital Signature
    • Detect TDLFS file system
  • then click OK.
  • Click the Start Scan button to start the scan.
  • If a suspicious object is detected, the default action will be Skip
  • If malicious objects are found, they will show in the Scan results and offer three (3) options.
  • Ensure Cure is selected for malicious objects

    Posted Image
  • Click Continue then Reboot now to finish the cleaning process.
  • Note: If Cure is not available, please choose Skip instead, do not choose Delete unless instructed.
A report will be created in your root directory, (usually C:\ folder) in the form of "TDSSKiller.[Version]_[Date]_[Time]_log.txt". Please copy and paste its contents on your next reply.

Step 3

Download OTL to your Desktop

  • Double click on the icon to run it (If running Vista or Windows 7, right click on it and select "Run as an Administrator"). Make sure all other windows are closed and to let it run uninterrupted.
  • Under the Custom Scan/Fixes box paste this in

netsvcs
%SYSTEMDRIVE%\*.exe
/md5start
explorer.exe
winlogon.exe
Userinit.exe
svchost.exe
services.exe
/md5stop
%systemroot%\*. /mp /s
CREATERESTOREPOINT

  • Click the Quick Scan button. Do not change any settings unless otherwise told to do so. The scan wont take long.
  • When the scan completes, it will open two notepad windows. OTL.Txt and Extras.Txt. These are saved in the same location as OTL.
  • Please copy (Edit->Select All, Edit->Copy) the contents of these files, one at a time, and post them if you need to start a new topic.
Step 4

Please don't forget to include these items in your reply:

  • OTL log
  • OTL Extras log
  • TDSSKiller log
It would be helpful if you could post each log in separate post using "Add Reply" button
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#4
maliprog

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Due to lack of feedback, this topic has been closed.

If you need this topic reopened, please contact a staff member. This applies only to the original topic starter. Everyone else please begin a New Topic.
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