Problems with sirefef and downloader pku

Viruses and worms
1

Having a problem with a friends computer with these trojans. I have run several boot time scans and they keep showing back up after deleting them. Latest Malwarebytes quick scan shows no infections. Here is the scan log.

Malwarebytes Anti-Malware (Trial) 1.62.0.1300
www.malwarebytes.org

Database version: v2012.07.22.08

Windows 7 Service Pack 1 x86 NTFS
Internet Explorer 9.0.8112.16421
Stephanie :: STEPHANIE-PC [administrator]

Protection: Enabled

7/22/2012 12:57:04 PM
mbam-log-2012-07-22 (12-57-04).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: 183319
Time elapsed: 2 minute(s), 27 second(s)

Memory Processes Detected: 0
(No malicious items detected)

Memory Modules Detected: 0
(No malicious items detected)

Registry Keys Detected: 0
(No malicious items detected)

Registry Values Detected: 0
(No malicious items detected)

Registry Data Items Detected: 0
(No malicious items detected)

Folders Detected: 0
(No malicious items detected)

Files Detected: 0
(No malicious items detected)

(end)

2

Here is the aswMBR log

3

malware removers are notified: It may take sveral hours before one arrive so be patient

4

Will do. Thanks!

5

I seethat you have run combofix, could you attach that log

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

:OTL IE - HKU\S-1-5-21-1115798408-2701171899-1592236096-1000\..\SearchScopes\{9BB47C17-9C68-4BB3-B188-DD9AF0FD2406}: "URL" = http://dts.search-results.com/sr?src=ieb&appid=394&systemid=406&sr=0&q={searchTerms} IE - HKU\S-1-5-21-1115798408-2701171899-1592236096-1000\..\SearchScopes,DefaultScope = {9BB47C17-9C68-4BB3-B188-DD9AF0FD2406} FF - prefs.js..browser.search.defaultenginename: "Search Results" FF - prefs.js..browser.search.order.1: "Search Results" FF - prefs.js..browser.search.selectedEngine: "Search Results" FF - prefs.js..browser.startup.homepage: "http://www.searchnu.com/406" FF - prefs.js..keyword.URL: "http://dts.search-results.com/sr?src=ffb&appid=394&systemid=406&sr=0&q=" [2012/06/29 20:24:50 | 000,002,519 | ---- | M] () -- C:\Program Files\mozilla firefox\searchplugins\Search_Results.xml [2012/06/29 20:24:50 | 000,002,519 | ---- | M] () -- C:\Users\Stephanie\AppData\Roaming\Mozilla\Firefox\Profiles\9jrxdtnb.default\searchplugins\Search_Results.xml

:Files
ipconfig /flushdns /c
C:\Windows\System32\config\systemprofile\AppData\Local{c7476de5-8963-a542-cb57-c4f8aacaea80}

: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.

6

Here is combofix file

7

Here is the new OTL scan.

8

How is the computer behaving now ?

9

Seems to be running ok, but I ran another boottime scan and it pulled up a win32 evo-gen infection. >:(

I selected to 2) Delete all

and let it continue. It also pulled up a few things on an old hdd that is from the previous system.

10

What was the location of the detected files ?

11

I am sorry I did not write down where the detected files were located. The EVO-GEN was on the c drive. The others were on the f drive. I can run another boot scan to find out.

12

Have as look in the Virus chest as they may have been files quarantined by either OTL or combofix

13

Yeah, it looks like it can be found here:
C:\TDSSKiller_Quarantine\20.07.2012_16.03.33\mbr0000\tdlfs0000

14

OK they are quarantined files and quite safe… Any other problems ?

15

The files are popping up still every time I do a boot time scan, what steps do I need to take to get them removed so I’m not seeing them every time I do a scan?

16

If that is all that is showing then

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

:Commands [resethosts] [emptytemp] [Reboot]

[*]Then click the Run Fix button at the top
[*]Let the program run unhindered, reboot the PC when it is done

Remove ComboFix

[*]Hold down the Windows key + R on your keyboard. This will display the Run dialogue box
[*]In the Run box, type in ComboFix /Uninstall (Notice the space between the “x” and “/”) then click OK

http://i1224.photobucket.com/albums/ee362/Essexboy3/Misc%20screen%20shots/CF_Uninstall-1.jpg

[]Follow the prompts on the screen
[]A message should appear confirming that ComboFix was uninstalled

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

[*]Go to control panel
[*]Select folder options (Appearance > Folder options in category view)
[*]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

SPRING CLEAN

To manually create a new Restore Point

[*]Go to Control Panel and select System
[*]Select System
[*]On the left select System Protection and accept the warning if you get one
[*]Select System Protection Tab
[*]Select Create at the bottom
[*]Type in a name i.e. Clean
[*]Select Create

Now we can purge the infected ones

[*]GoStart > All programs > Accessories > system tools
[*]Right click Disc cleanup and select run as administrator
[*]Select Your main drive and accept the warning if you get one
[*]For a few moments the system will make some calculations
[*]Select the More Options tab
[*]In the System Restore and Shadow Backups select Clean up
[*]Select Delete on the pop up
[]Select OK
[]Select Delete

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: