Virus Sinowal Master Boot Record-virus

Hi im having trouble with a rootkit. avast detects sinowal. Ive run malwarebytes and avast and they removed most rootkits but that sinowal is still left in the mbr 0. It says file infected mbr 0 sinowal.

Ive figured that i have to run mbr fix somehow would be really glad if someone could help me out…

we can try

ok, here it is…

aswMBR version 0.9.4 Copyright(c) 2011 AVAST Software
Run date: 2011-04-04 14:58:43

14:58:43.781 OS Version: Windows 5.1.2600 Service Pack 3
14:58:43.781 Number of processors: 2 586 0xE08
14:58:43.781 ComputerName: EDUAROLI-B393CF UserName: Eduarolito
14:58:44.937 Initialize success
14:58:48.328 Disk 0 (boot) \Device\Harddisk0\DR0 → \Device\Ide\IdeDeviceP0T0L0-4
14:58:48.328 Disk 0 Vendor: TOSHIBA_MK6008GAH BU022C Size: 57231MB BusType: 3
14:58:48.328 Disk 0 MBR read error
14:58:48.328 Disk 0 MBR scan
14:58:48.328 MBR BIOS signature not found 0
14:58:48.343 Disk 0 scanning sectors +117195120
14:58:48.343 Disk 0 scanning C:\WINDOWS\system32\drivers
14:59:11.140 Service scanning
14:59:12.734 Disk 0 trace - called modules:
14:59:12.734 ntkrnlpa.exe >>UNKNOWN [0x865d30e8]<<
14:59:12.734 1 nt!IofCallDriver → \Device\Harddisk0\DR0[0x86524ab8]
14:59:12.734 \Driver\Disk[0x86526a08] → IRP_MJ_CREATE → 0x865d30e8
14:59:12.734 Scan finished successfully

hmmmm…that looks clean ?

Run Kaspersky TDSSKiller, follow the instructions and post the log
http://support.kaspersky.com/faq/?qid=208283363

Uh, well, you tell me…hehe.

Thing is avast still detects sinowal @ mbr 0 everytime i boot-scan…

Ill try tdskiller then…

Ok it found 3 viruses, one of them sinowal! It said it could “cure” it, but i pressed “skip” on the other two… i guess i should run it again and delete the other two?

2011/04/04 15:16:33.0515 6228 ================================================================================
2011/04/04 15:16:33.0515 6228 Scan finished
2011/04/04 15:16:33.0515 6228 ================================================================================
2011/04/04 15:16:33.0515 2408 Detected object count: 3
2011/04/04 15:17:26.0375 2408 Locked file(dtscsi) - User select action: Skip
2011/04/04 15:17:26.0375 2408 Locked file(sptd) - User select action: Skip
2011/04/04 15:17:26.0453 2408 \HardDisk0 (Backdoor.Win32.Sinowal.knf) - will be cured after reboot
2011/04/04 15:17:26.0453 2408 \HardDisk0 - ok
2011/04/04 15:17:26.0453 2408 Backdoor.Win32.Sinowal.knf(\HardDisk0) - User select action: Cure

yepp and reboot

when done continue with this

Follow this guide from our expert malware remover Essexboy
http://forum.avast.com/index.php?topic=53253.0
(post the logs here in this topic and not in the guide)

To avoid using multiple post with copy and paste you have to attach the log`s
Lower left corner: Additional Options > Attach ( Malwarebytes log / OTS log )

OBS: Save OTS log as ANSI and not UNICODE
that also goes for TDSSKiller log

Essexboy will then check the log`s when he arrive here later, and tell us what we did wrong ;D
he will be here in about 4-5 hours