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Google Redirect Rootkit

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5 replies to this topic

#1 X Digital

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Posted 06 January 2012 - 01:19 PM

I have scanned the system with Malwarebytes, combofix, Eset online scan, Microsoft Security Essentials, TDSSKiller (all latest up to an hour ago)

aswMBR scan show suspicious partition.
I can easily restore this mbr, but I would like to save the this MBR first before doing further to help the community.
Then reports this type of virus
Using Windows Disk Management, this virus created an extra 2MB partition at the end of the drive, thus I have 3 partitions, not the normal 2 partition scheme created by Windows 7 installation.

aswMBR version Copyright(c) 2011 AVAST Software
Run date: 2012-01-06 11:02:04
11:02:04.370    OS Version: Windows x64 6.1.7601 Service Pack 1
11:02:04.370    Number of processors: 8 586 0x1A05
11:02:04.370    ComputerName: FARMPC  UserName: John
11:02:05.103    Initialize success
11:02:09.363    Disk 0 (boot) \Device\Harddisk0\DR0 -> \Device\Ide\IdeDeviceP2T0L0-2
11:02:09.363    Disk 0 Vendor: ST3500418AS CC38 Size: 476938MB BusType: 3
11:02:09.379    Disk 0 MBR read successfully
11:02:09.379    Disk 0 MBR scan
11:02:09.379    Disk 0 Windows 7 default MBR code
11:02:09.379    Disk 0 MBR hidden
11:02:09.395    Disk 0 Partition 1 00     07    HPFS/NTFS NTFS          100 MB offset 2048
11:02:09.395    Disk 0 Partition 2 00     07    HPFS/NTFS NTFS       476836 MB offset 206848
11:02:09.426    Disk 0 Partition 3 80 (A) 17 Hidd HPFS/NTFS NTFS            1 MB offset 976766976
11:02:09.441    Disk 0 Partition 3  [b]**SUSPICIOUS**[/b]
11:02:09.441    Service scanning
11:02:10.643    Service MpNWMon C:\Windows\system32\DRIVERS\MpNWMon.sys **LOCKED** 32
11:02:11.235    Modules scanning
11:02:11.235    Disk 0 trace - called modules:
11:02:11.235    ntoskrnl.exe CLASSPNP.SYS disk.sys ACPI.sys >>UNKNOWN [0xfffffa8006365334]<<
11:02:11.251    1 nt!IofCallDriver -> \Device\Harddisk0\DR0[0xfffffa800629f790]
11:02:11.251    3 CLASSPNP.SYS[fffff8800181743f] -> nt!IofCallDriver -> [0xfffffa8006060520]
11:02:11.251    5 ACPI.sys[fffff88000ee27a1] -> nt!IofCallDriver -> \Device\Ide\IdeDeviceP2T0L0-2[0xfffffa8006062060]
11:02:11.251    \Driver\atapi[0xfffffa80060243f0] -> IRP_MJ_INTERNAL_DEVICE_CONTROL -> 0xfffffa8006365334
11:02:11.267    Scan finished successfully
11:02:41.515    Disk 0 MBR has been saved successfully to "C:\Users\John\Downloads\MBR.dat"
11:02:41.593    The log file has been saved successfully to "C:\Users\John\Downloads\aswMBR.txt"

Thank guy!

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#2 X Digital

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Posted 06 January 2012 - 01:30 PM

Oh I didn't know The MBR.dat has been saved by aswMBR.
I will reset the MBR, I report if that will fix the Google Redirect problem

DISKPART> list partition

  Partition ###  Type              Size     Offset
  -------------  ----------------  -------  -------
  Partition 1    Primary            100 MB  1024 KB
  Partition 2    Primary            465 GB   101 MB
  Partition 3    Primary           2031 KB   465 GB

DISKPART> select partition 3

Partition 3 is now the selected partition.

DISKPART> detail partition

Partition 3
Type  : 17
Hidden: Yes
Active: Yes
Offset in Bytes: 500104691712

There is no volume associated with this partition.

DISKPART> set ID=07 override

DiskPart has encountered an error: The parameter is incorrect.
See the System Event Log for more information.

Here is a little information about that 2MB partition, I could not change its type to 07 (NTFS), I usually can do it with regular hidden NTFS partition.

#3 X Digital

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Posted 06 January 2012 - 02:12 PM

After delete that partition, restored the MBR and boot information, my system is good now.
I did submit the MBR.dat to TotalVirus, It reports clean (of course)

But I didn't capture that 2MB partition!!!
I think the virus was hidden in there, But I don't know any tool to capture that partition.
I guess that partition was active, and the system booted to that partition first, then redirect to the regular 100MB Windows 7 Boot partition.


That partition is still on the the hard drive, I can use partition recovery to recover that.
I need to know a good tool to dump that partition and a useful way to submit that partition to antivirus providers.
Any recommendation!!!

Edited by X Digital, 06 January 2012 - 02:15 PM.

#4 X Digital

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Posted 06 January 2012 - 03:05 PM

Able to extract that partition using Active Undelete.
Submit the extracted file to Total Virus. Here is the result

Submission date: 2012-01-06 19:47:46 (UTC)
Current status: finished
Result: 9/ 43 (20.9%)
VT Community

Print results 
Antivirus	Version	Last Update	Result
AntiVir	2012.01.06	BOO/TDss.O
Avast	6.0.1289.0	2012.01.06	MBR:Alureon-K [Rtk]
BitDefender	7.2	2012.01.06	Rootkit.MBR.Sst.B (Boot image)
DrWeb	2012.01.06	BackDoor.Tdss.5544
F-Secure	9.0.16440.0	2012.01.06	Rootkit.MBR.Sst.B \(Boot image\)
GData	22	2012.01.06	Rootkit.MBR.Sst.B
Microsoft	1.7903	2012.01.06	Trojan:DOS/Alureon.E
Norman	6.07.13	2012.01.06	nown virus, B.H
Sophos	4.73.0	2012.01.06	Troj/TdlMbr-D

So if you have Google redirect problem, try these antivirus software on a clean computer.

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Posted 12 January 2012 - 01:20 PM

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