Win32:Sirefref-Ao[Rtk] threat

Viruses and worms
1

Hallo Guys!
I receive every couple of minutes a pop up blocked message from Avast saying that treat has been blocked

"ROOTKIT BLOCKED
Action: Moved to Chest

"TROJAN HORSE BLOCKED
Action: Moved to Chest

can anybody had experience in fixing these problems

Thanking you
Madhu

2

Could you follow the steps here http://forum.avast.com/index.php?topic=53253.0

Then attach the logs in this thread

3

Thanks for the reply

here is the Mbam-log file after the removal of the detected Malwares

Internet Explorer 8.0.6001.18702
Prathima :: MADHU [limited]

7/3/2012 9:09:36 PM
mbam-log-2012-07-03 (21-09-36).txt

Scan type: Quick scan
Scan options enabled: Memory | Startup | Registry | File System | Heuristics/Extra | Heuristics/Shuriken | PUP | PUM
Scan options disabled: P2P
Objects scanned: 164685
Time elapsed: 16 minute(s), 10 second(s)

Memory Processes Detected: 0
(No malicious items detected)

Memory Modules Detected: 0
(No malicious items detected)

Registry Keys Detected: 1
HKCU\SOFTWARE\CLASSES\CLSID{42AEDC87-2188-41FD-B9A3-0C966FEABEC1}\INPROCSERVER32 (Trojan.Zaccess) → Quarantined and deleted successfully.

Registry Values Detected: 1
HKCU\SOFTWARE\CLASSES\CLSID{42aedc87-2188-41fd-b9a3-0c966feabec1}\InprocServer32| (Trojan.Zaccess) → Data: C:\Documents and Settings\Prathima\Local Settings\Application Data{bbe217ff-6b50-4980-7a62-eb38c11f7091}\n. → Quarantined and deleted successfully.

Registry Data Items Detected: 2
HKLM\SOFTWARE\Microsoft\Security Center|AntiVirusDisableNotify (PUM.Disabled.SecurityCenter) → Bad: (1) Good: (0) → Delete on reboot.
HKLM\SOFTWARE\Microsoft\Security Center|FirewallDisableNotify (PUM.Disabled.SecurityCenter) → Bad: (1) Good: (0) → Delete on reboot.

Folders Detected: 0
(No malicious items detected)

Files Detected: 0
(No malicious items detected)

(end)

Do i need to follow the other steps (download OTL.exe…) as described in the above link posted by you.

Thanking you
Madhu

4

Yes please as MBAM cannot clear that malware by itself

5

Hallo,

attached the scanned log files, one more thing is after the Mbam scan there are no more pop up messages from Avast regarding the viruses, is it a good sign…

Thanking you,
Madhu

6

A few to remove I think

Warning This fix is only relevant for this system and no other, using on another computer may cause problems

Be advised that when the fix commences it will shut down all running processes and you may lose the desktop and icons, they will return on reboot

Run OTL

[*]Under the Custom Scans/Fixes box at the bottom, paste in the following

https://dl.dropbox.com/u/73555776/OTL_Fix.GIF

:Files C:\WINDOWS\tasks\At*.job C:\Documents and Settings\Prathima\Local Settings\Application Data\{bbe217ff-6b50-4980-7a62-eb38c11f7091}

:Commands
[purity]
[resethosts]
[emptytemp]
[CREATERESTOREPOINT]
[Reboot]


[*]Then click the Run Fix button at the top
[*]Let the program run unhindered, reboot the PC when it is done
[*]Open OTL again and click the Quick Scan button. Post the log it produces in your next reply.

7

Hallo,

I copied the script in the OTL and clicked the Run Fix as described in the post, but immediately got a pop up message “Malware blocked” and also the message saying “cannot create C: \Windows\System32\drivers\etc\Hosts” and at the end of OTL screen states “creating Host… do not interrupt the process” so I leaved the computer for another two hours and nothing happened i shut downed and restarted.

can you please tell me what went wrong

Thanking you,
Madhu

8

Could you stop OTL please, the malware blocked was probably as it was moving the file

And use this custom script

C:\WINDOWS\tasks\At*.job
C:\Documents and Settings\Prathima\Local Settings\Application Data{bbe217ff-6b50-4980-7a62-eb38c11f7091}[/b]

9

attached the log files

Thanking you,
Madhu

10

Could you re-run this part of the fix again please, also how is the computer behaving ?

C:\WINDOWS\tasks\At*.job[/b]

11

thanks for quick reply,

I ran the script, attached the log files. Until now nothing strange observed in the system, is my system compromised?

Thanking you!

Regards
Madhu

12

Subject to no further problems :slight_smile:

I will remove my tools now and give some recommendations, but, I would like you to run for 24 hours or so and come back if you have any problems

Now the best part of the day ----- Your log now appears clean :thumbsup:

A good workman always cleans up after himself so…The following will implement some cleanup procedures as well as reset System Restore points:

Run OTL and hit the cleanup button. It will remove all the programmes we have used plus itself.

We will now confirm that your hidden files are set to that, as some of the tools I use will change that
[*]Click Start.
[*]Open My Computer.
[*]Select the Tools menu and click Folder Options.
[*]Select the View Tab.
[*]Under the Hidden files and folders heading select Do not show hidden files and folders.
[]Click Yes to confirm.
[]Click OK.

http://users.telenet.be/bluepatchy/miekiemoes/images/javaicon.gif
Your Java is out of date.
Older versions have vulnerabilities that malware can use to infect your system.
Please follow these steps to remove older version of Java components and upgrade the application.

Upgrading Java:
[] Go to this site and click Do I have Java
[] It will check your current version and then offer to update to the latest version

Now that you are clean, to help protect your computer in the future I recommend that you get the following free programmes:

http://img233.imageshack.us/img233/7729/mbamicontw5.gif
Malwarebytes.

Update and run weekly to keep your system clean

Download and install FileHippo update checker and run it monthly it will show you which programmes on your system need updating and give a download link

It is critical to have both a firewall and anti virus to protect your system and to keep them updated. To keep your operating system up to date visit
[*]Microsoft Windows Update

To learn more about how to protect yourself while on the internet read our little guide How did I get infected in the first place ?Keep safe :wave:

13

Hallo,
computer not rebooting,
I restarted few times but after windows xp loading it is showing blank

What could be the problem ?
Regards
Madhu

14

Hallo,

it seems the problem lies with connection to the TV, i disconnected the TV and everything seems to be OK, sorry to bother you.

Regards
Madhu

15

No problem… The little things always slip by ;D

16

I removed the tools by clicking the clean up in the OTL kit ,

Thanks everything seems working fine!

Regards
Madhu

17

My pleasure