AVAST detects and blocks malware on startup

Viruses and worms
1

Hello everybody,

I’m having this problem every time my pc starts up:

http://img5.imageshack.us/img5/9103/e8uh.png

http://img853.imageshack.us/img853/7782/a2d8.png

I tried AdwCleaner, Malwarebytes’ Anti-Malware, MCShield. AdwCleaner and Anti-Malware found something and I cleaned it but it didn’t helped. MCshield does not find any viruses.
Then I scanned with OTL using this guide: http://forum.avast.com/index.php?PHPSESSID=vsqn7fluvgjhtomu3r330ut1u1&topic=53253.0
And attached those two log files.

Can somebody help me to solve this issue, please?

P.S. PC works normally. Only at start up I’m getting these messages.
Avast Free
Win 7 64 bit

2

Monitoring…

3

Hi,

Re-run Adwcleaner, but now make sure to hit Clean button, after the scanning is complete.
Attach me that log.

Then…

Please download GMER, AntiRootkit tool from the link below and save it to your Desktop:

Gmer download link
Note: file will be random named

Double-clicking to run GMER.

[*]Wait for initial scan to finish - if there is any query, click No;
[*]Click Scan button and wait until the full scan is complete;
[*]Click Save … - save the report to the Desktop (named Gmer );

Attach here Gmer logreports.

Then…

Please download Farbar Recovery Scan Tool by Farbar and save it to your desktop.

Note: You need to run the version compatibale with your system. If you are not sure which version applies to your system download both of them and try to run them.
Only one of them will run on your system, that will be the right version.

[*]Double-click to run it. When the tool opens click Yes to disclaimer.
[*]Under Optional Scan ensure “List BCD” and “Driver MD5” are ticked.
[*]Press Scan button.
[*]It will make a log (FRST.txt) in the same directory the tool is run. Please attach it to your reply.
[*]The first time the tool is run, it makes also another log (Addition.txt). Please attach it to your reply.

4

Thank you for quick reply :slight_smile:

I’ve done as you told.

5

1. Open notepad and copy/paste the text present inside the code box below.
To do this highlight the contents of the box and right click on it. Paste this into the open notepad.
NOTICE: This script was written specifically for this user, for use on that particular machine. Running this on another machine may cause damage to the operating system

MountPoints2: I - I:\Setup.exe
MountPoints2: {99841693-1d7b-11e3-a72f-94de8070e972} - I:\Setup.exe
C:\Users\Martynas\AppData\Local\Temp
cmd: ipconfig /flushdns

2. Save notepad as fixlist.txt to your Desktop.
NOTE: => It’s important that both files, FRST and fixlist.txt are in the same location or the fix will not work.

3. Run FRST/FRST64 and press the Fix button just once and wait.
If the tool needed a restart please make sure you let the system to restart normally and let the tool completes its run after restart.

The tool will make a log on the Desktop (Fixlog.txt). Please attach it to your reply.
Note: If the tool warned you about the outdated version please download and run the updated version.

Then…

Please download aswMBR and save it to your desktop.

Double click aswMBR.exe to start the tool.

[*]Select Yes if prompted to download the Avast database.
[*]Click Scan
[*]Upon completion of the scan ( Scan finished successfully ) click Save log and save it to your desktop, and post that log in your next reply for review.
Note: do NOT attempt any Fix yet.

6

I ran FRST64 fix twice so the log may look strange :smiley:
Malware detection remains.

7

Please go to: VirusTotal

[*] Click the Choose File button.
[*] Please copy/paste the following text into the ‘File name:’ box:

    C:\WINDOWS\system32\wscript.exe

[*] Click Open then click the Scan it! button just below.
[*] This will scan the file. Please be patient.
[*] If you get a message saying File already analyzed: click Reanalyse
[*] Once scanned, copy and paste the URL from your browser address bar in your next reply.

8

https://www.virustotal.com/en/file/047f3c5a7ab0ea05f35b2ca8037bf62dd4228786d07707064dbd0d46569305d0/analysis/1383308644/

9

Hi,

Let’s re-check the system with another tool…

Download TDSSKiller and save it to your desktop

Execute TDSSKiller.exe by doubleclicking on it.
Confirm “End user Licence Agreement” and “KSN Statement” dialog box by clicking on Accept button.

[*] Press Start Scan
[*] If Suspicious object is detected, the default action will be Skip, click on Continue.
[*] If Malicious objects are found, select Cure.

Once complete, a log will be produced at the root drive which is typically C:\ ,for example, C:\TDSSKiller.<version_date_time>log.txt

Please post the contents of that log in your next reply.

Then…

Download and Install Combofix

Download ComboFix from one of the following locations:
Link 1
Link 2

VERY IMPORTANT !!! Save ComboFix.exe to your Desktop

  • IMPORTANT - Disable your AntiVirus and AntiSpyware applications, usually via a right click on the System Tray icon. They may otherwise interfere with our tools. If you have difficulty properly disabling your protective programs, refer to this link here

[*]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:

  1. Do not mouse-click Combofix’s window while it is running. That may cause it to stall.
  2. Do not “re-run” Combofix. If you have a problem, reply back for further instructions.
  3. If after the reboot you get errors about programmes being marked for deletion then reboot, that will cure it.

Please make sure you include the combo fix log in your next reply as well as describe how your computer is running now

10

Still having pop-up about malware on start up.

11

System is clean, no malware in the logs. This is false positive detection…

Please download DelFix by “Xplode” to your Desktop.

Run the tool and check the following boxes below;

[] Remove disinfection tools
[] Create registry backup
[*] Purge System Restore

Now click on “Run” button. Wait for the programme completes his work.
All the tools we used should be gone.
Tool will create and open an log report (DelFix.txt)
Note: The report will also be stored on C:\DelFix.txt

I don’t need DelFix log report.

12

Ok, thank you for your help :slight_smile:
Good luck killing malwares :smiley: