Hi, I need help with this rootkit, please.
Avast scan at startup did not detect it. Only AswMBR found it.
I’ve also made a rootkit scan with spybot2 (which i installed just for a scan and then uninstalled it) and didn’t find zeroot-b, but it did alert me of a MBR-physicaldrive0.
Here are the logs of Hijackthis, Adwcleaner, Mbam and aswMBR.
Thank you very much for your kind help.
hey and welcome to the forum. plaese attach the otl scan log too from this guide.
here are the OTL and TDSSKiller logs.
Thanks again
Hey here are the logs of spybot and superantispyware, don’t know if they can be of any use.
Wish you a Merry Christmas in the meanwhile!
Hey here are the logs of spybot and superantispyware, don't know if they can be of any use.SpyBoot...... absolutely nada
[b]Cons[/b] Extremely poor detection of malware. Extremely poor removal of detected malware. Even worse removal of rootkits in particular. Many user interface elements significantly awkward.
[b]Bottom Line[/b] Spybot was one of the first antispyware tools ever. It's been dormant for a while. Now Spybot - Search & Destroy 2.0 promises to destroy "spyware, malware, adware and other malicious software.[b]" In testing, it proved almost 100 percent ineffective[/b].http://www.pcmag.com/article2/0,2817,2412372,00.asp
Malware experts are notified…be patient
No sign of zero access there , I see that 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
O2 - BHO: (no name) - {1C67BFBC-BB54-4EE2-A3E8-0AA6EFEE5715}A3E8-0AA6EFEE5715} - No CLSID value found.
O3 - HKU\S-1-5-21-1733644386-987702636-2351089283-1006\..\Toolbar\ShellBrowser: (no name) - {0E1230F8-EA50-42A9-983C-D22ABC2EED3B} - No CLSID value found.
O3 - HKU\S-1-5-21-1733644386-987702636-2351089283-1006\..\Toolbar\ShellBrowser: (no name) - {C4069E3A-68F1-403E-B40E-20066696354B} - No CLSID value found.
O3 - HKU\S-1-5-21-1733644386-987702636-2351089283-1006\..\Toolbar\WebBrowser: (no name) - {2318C2B1-4965-11D4-9B18-009027A5CD4F} - No CLSID value found.
O3 - HKU\S-1-5-21-1733644386-987702636-2351089283-1006\..\Toolbar\WebBrowser: (no name) - {472734EA-242A-422B-ADF8-83D1E48CC825} - No CLSID value found.
O3 - HKU\S-1-5-21-1733644386-987702636-2351089283-1006\..\Toolbar\WebBrowser: (no name) - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - No CLSID value found.
:Commands
[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.
Hi!
Pondus: I uninstalled spybot right after the scans, but i noticed that the quick-scan for rootkits alerted me of MBRphysicaldrive0 and another K something which looks like a windows update. Since I didn’t see signs of these in the other logs i decide to upload these too 
Essexboy, I’ll try with yr code in OTL and past the log ASAP. Regarding Combofix, it runs smoothly through the various level but doesn’t reboot system at the end, it says deleting TEMP folder but after that doesn’t do anything. It does not hang though. And, most importantly, it creates a logfile which just redirects to My Computer, even if I rename it in *.txt! Any ideas why? This happened even when i changed combofix name and run it again.
Thank you Essexboy
Here are the Otl logs (the one after the fix and the one after a fresh quick scan).
The pc still boots slowly and the windows sound is distorted. Everything slows down and the CPU usage is often at 100%, but I’m still able to write from here.
Lets try this next
Download the latest version of TDSSKiller from here and save it to your Desktop.
[*]Doubleclick on TDSSKiller.exe to run the application
https://dl.dropbox.com/u/73555776/tdss%20start.JPG
[*]Then click on Change parameters.
https://dl.dropbox.com/u/73555776/tdss%20Change%20param.JPG
[*]Check the boxes beside Verify Driver Digital Signature and Detect TDLFS file system, then click OK.
[*]Click the Start Scan button.
[*]If a suspicious object is detected, the default action will be Skip, click on Continue.
https://dl.dropbox.com/u/73555776/tdss%20threat.JPG
[*]If malicious objects are found, they will show in the Scan results and offer three (3) options.
[*]Ensure Cure is selected, then click Continue => Reboot now to finish the cleaning process.
[*]Get the report by selecting Reports
https://dl.dropbox.com/u/73555776/tdss%20report.JPG
[*]Note: If Cure is not available, please choose Skip instead, do not choose Delete unless instructed.
Please copy and paste its contents on your next reply.
Here is the new TDSSKiller log.
Merry XMas
Looks like it is repair time
Download Windows Repair (all in one) from this site
Install the programme then run
https://dl.dropbox.com/u/73555776/waio%20start.JPG
Go to step 3 and allow it to run SFC
https://dl.dropbox.com/u/73555776/waio%20step3.JPG
On the start repairs tab click start
https://dl.dropbox.com/u/73555776/waiostart%20rep.JPG
Select the following items and tick restart system when finished
Thankx essexboy, I have dled the tool and run it as in your instructions. The system file check didn’t ask me for the windows xp cd though. I also did the start repairs and restarted, but it doesn’t look much better and the windows sounds is still distorted.
Next step?
OK I feel that the aswMBR is a false positive
Download and Install Combofix
Download ComboFix from one of the following locations:
Link 1
Link 2
VERY IMPORTANT !!! Save ComboFix.exe to your Desktop
[*]Double click on ComboFix.exe & follow the prompts.
[*]Accept the disclaimer and allow to update if it asks
http://img.photobucket.com/albums/v706/ried7/NSIS_disclaimer_ENG.png
http://img.photobucket.com/albums/v706/ried7/NSIS_extraction.png
[*]When finished, it shall produce a log for you.
[*]Please include the C:\ComboFix.txt in your next reply.
Notes:
Please make sure you include the combo fix log in your next reply as well as describe how your computer is running now
After completing stage 50 ComboFix Says:
Deleting Folders:
c:\Documents and Settings\All Users\Datos de programa\TEMP
and just stays there forever without doing nothing, it’s not frozen, but it does not do any action nor boot the pc and does not create a log, just a shortcut in c:\ named Combofix, which points to My PC.
OK could you re-run combofix from safe mode please
Combofix behaves exactly the same in safe mode, does not freeze but does not end and reboot either, and the log it produces in c:\combofix is actually just a shortcut to MyPC.
The machine still takes a while to boot up, and most of the times the sound is distorted, not always though.
Normal use of pc is difficult because the CPU rapidly rises to 100%.
If it’s a false positive, what is causing these issues?
[*] Download RogueKiller and save it on your desktop.
NOTE: If using IE8 or better Smartscreen Filter will need to be disabled
[*]Quit all programs
[*] Start RogueKiller.exe.
[*] Wait until Prescan has finished …
[*] Click on Scan
https://dl.dropbox.com/u/73555776/RKScan.GIF
[*]Wait for the end of the scan.
[*] The report has been created on the desktop.
[*] Click on the Delete button.
https://dl.dropbox.com/u/73555776/RKDelete.GIF
[*]The report has been created on the desktop.
[*]Next click on the ShortcutsFix
https://dl.dropbox.com/u/73555776/RKFixShortcuts.GIF
[*]The report has been created on the desktop.
Please post: All RKreport.txt text files located on your desktop.
Thank you for your help!
Here are the roguekiller logs.
When CPU usage inceases to 100 can you open task manager and let me know what process it running at highest
Ok after all of this cleaning I rebooted and re-enabled windows firewall and avast antivirus. Looking at task manager I’ve noticed that wuauclt.exe is always using up a lot of memory (100.000KB or more) and CPU as well. One of the svchost.exe is up there too, followed by explorer.exe. And then I’ve also noticed that Avast is trying to update but it takes ages to DL the definitions and even more to check for a new version of the program (it’s not a connection problem because on the other pc in the same LAN everything works fine).
When I kill wuauclt.exe and after waiting many minutes for Avast to complete its update check, then the CPU goes back to 0%, but as I try to open some programs (typically firefox) it goes back to 100% and it takes 2 or 3 minutes to use the browser. When everything’s calm it goes back to 0% but even touching the touchpad sends the CPU to at least 20%.