Avast WEBforum

Other => Viruses and worms => Topic started by: daveshans on May 12, 2013, 11:49:14 PM

Title: Win32:Malware-gen
Post by: daveshans on May 12, 2013, 11:49:14 PM
I downloaded the newest Avast a few days ago and now every time my computer boots I get a warning about a virus being moved to the chest. It's identified as Win32:Malware-gen. It doesn't show up when I do a boot scan though.

I've run the scans in the pinned topic and attached the logs. Is there anything that can be done?
Title: Re: Win32:Malware-gen
Post by: daveshans on May 12, 2013, 11:50:20 PM
Extra attachment.
Title: Re: Win32:Malware-gen
Post by: Pondus on May 12, 2013, 11:54:06 PM
malware removers are notified, it may take hours before they arrive so be patient....
most of them are in European time zone and it is midnight here now so you may not see any until tomorrow

Title: Re: Win32:Malware-gen
Post by: daveshans on May 12, 2013, 11:55:20 PM
malware removers are notified, it may take hours before they arrive so be patient....
most of them are in European time zone and it is midnight here now so you may not see any until tomorrow
Thanks.
Title: Re: Win32:Malware-gen
Post by: magna86 on May 13, 2013, 12:30:22 PM
Hi,

Step#1



> Download ComboFix from here (http://download.bleepingcomputer.com/sUBs/ComboFix.exe) and save it to your Desktop.
If you are unsure how ComboFix works please read this guide (http://www.bleepingcomputer.com/combofix/how-to-use-combofix) carefully.
note: ComboFix must be downloaded to your Desktop.

> Temporarily disable your AntiVirus program.
If you are unsure how to do this please read this (http://www.techsupportforum.com/forums/f50/how-to-disable-your-security-applications-490111.html) or this (http://www.bleepingcomputer.com/forums/topic114351.html) Instruction.

How to disable avast:

Note: Do not forget to turn on this option after the cleaning.



> Run ComboFix. Click on I Agree!
ComboFix will check if there is a newer version of ComboFix available.
Click Yes if prompted to download.

ComboFix will display DISCLAIMER OF WARRANTY ON SOFTWARE.
Click Yes to allow ComboFix to continue.

If Recovery Console is not installed, ComboFix will offer download & installation.
Click Yes to allow ComboFix to install Recovery Console.
Note:Do not mouse-click Combofix's window while it is running.
If you see a message like "Illegal operation attempted on a registry key that has been marked for deletion" just restart computer once more.


> When the tool is finished, it will produce a log report for you. (typical location: C:\ComboFix.txt )
  Attach log reports ( ComboFix.txt) back to topic.



******************************


Step#2


Please download zoek.exe (http://home.kpn.nl/stefsmeenk/zoek.exe/) and save it to your desktop.

Code: [Select]
standardsearch;
Title: Re: Win32:Malware-gen
Post by: daveshans on May 13, 2013, 01:40:36 PM
Done.
Title: Re: Win32:Malware-gen
Post by: daveshans on May 13, 2013, 01:43:26 PM
Second attachment.
Title: Re: Win32:Malware-gen
Post by: magna86 on May 13, 2013, 03:36:39 PM
Those logs doesn't looks so bad. We will run AntiRootkit Checking now.

Step#1


Please download Malwarebytes AntiRootkit and save it to your desktop.
http://www.malwarebytes.org/products/mbar/

Full instructions how to use MBAR
http://www.bleepingcomputer.com/virus-removal/how-to-use-malwarebytes-anti-rootkit

    Please note: This is a beta version so please be sure to read the disclaimer and note of it.

>> Please attach the two following logs from the mbar folder:

system-log.txt
and
mbar-log-year-month-day (hour-minute-second).txt.


***********************


Step#2



Download TDSSKiller (http://support.kaspersky.com/downloads/utils/tdsskiller.exe)  and save it to your desktop

    Execute TDSSKiller.exe by doubleclicking on it.

Note:It will also create a log in the C:\ directory.
Title: Re: Win32:Malware-gen
Post by: daveshans on May 13, 2013, 04:26:08 PM
Done.
Title: Re: Win32:Malware-gen
Post by: magna86 on May 13, 2013, 04:42:13 PM
All looks just fine.

Quote
I downloaded the newest Avast a few days ago and now every time my computer boots I get a warning about a virus being moved to the chest. It's identified as Win32:Malware-gen.

Do you still getting these warnings?
If you do, can you tell us the exact name with path of detected file?


Also, could you go here:
C:\ProgramData\AVAST Software\Avast\report

...and attach here "BehaviorShield.txt" log
Title: Re: Win32:Malware-gen
Post by: daveshans on May 13, 2013, 06:15:09 PM
No warning when I booted up just now.

The path was C:\Users\Dave\AppData\Local\Temp but the name was always different. The last few names were iefgtvgj.dll c4ygo0pm.dll ub4wuz1j.dll.
Title: Re: Win32:Malware-gen
Post by: magna86 on May 13, 2013, 06:54:10 PM
This is %temp% folders. CF is automated to deletes the contents of those folders.

It is necessary to uninstall ComboFix :
Code: [Select]
ComboFix /Uninstall Note that there is a space between "  ComboFix  " and "  /Uninstall  " .

Wait for the uninstall process is complete.



We will keep other tools and let me know tomorrow how your computer running.
Title: Re: Win32:Malware-gen
Post by: daveshans on May 13, 2013, 07:00:28 PM
Unnistalled, I'll let you know tomorrow. Thanks for the help.
Title: Re: Win32:Malware-gen
Post by: daveshans on May 14, 2013, 01:28:50 PM
I've booted up a few times since yesterday without any issues.

I assume I should change all my passwords just to be on the safe side.
Title: Re: Win32:Malware-gen
Post by: magna86 on May 14, 2013, 08:58:31 PM
 :)  Will remove the used tools.

Please download  DelFix (http://general-changelog-team.fr/fr/downloads/finish/20-outils-de-xplode/9-delfix) by "Xplode" to your Desktop.

Run the tool and check the following boxes below;

Now click on "Run" button. Wait for the programme completes his work.

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.



*****************



I recommended to keep Malwarebytes and to use MCShield if you will.
You may download MCShield from one of the following links:

MyCity -  Official download link (http://amf.mycity.rs/mcshield/)
Softpedija - Mirror download link (http://www.softpedia.com/get/Antivirus/MCShield.shtml)

It will prevent infection by computer via USB flash drive, mobile phone or any other memory card.
And not only will prevent infection, but it will immediately clean flash drive, memory card or external HDD.
Title: Re: Win32:Malware-gen
Post by: daveshans on May 14, 2013, 09:30:12 PM
All done, thanks.
Title: Re: Win32:Malware-gen
Post by: kaise1 on May 15, 2013, 02:33:19 PM
here also many thanks magna86
Title: Re: Win32:Malware-gen
Post by: magna86 on May 15, 2013, 04:33:10 PM
(http://www.mycity.rs/images/smiles/Emoticon%208.png)
Title: Win32:Malware-gen
Post by: Sweeters on December 05, 2013, 06:51:00 PM
Hello i found same name "Virus: i would like very much to delete it

any help C:\Users\admin\appdata\Local\temp\wz9196

names like Office 2010 toolkit 2.0.1.exe

thanks!
Title: Re: Win32:Malware-gen
Post by: magna86 on December 05, 2013, 07:20:26 PM
This will "delete" your virus.


 Please download TFC by OldTimer (http://oldtimer.geekstogo.com/TFC.exe) to your desktop
TFC Info:
http://www.geekstogo.com/forum/files/file/187-tfc-temp-file-cleaner-by-oldtimer/
Title: Re: Win32:Malware-gen
Post by: Sweeters on December 05, 2013, 09:36:43 PM
Hello And thanks for your reply

i did as you said and i run a new scan now
but the file is still in virus chest (should be there?)

Also do u know what could be that file ?

Thanks again!
Title: Re: Win32:Malware-gen
Post by: Sweeters on December 05, 2013, 10:10:03 PM
Hm nice found different file in folder of downloads

name of the file is stream_api.dll :(

( i should wait and write both together)

i dont see the folder that avast gives me in my download folder :(

Can you please help me again ?

Aplogise for any inconvenience
Title: Re: Win32:Malware-gen
Post by: magna86 on December 06, 2013, 12:18:54 AM
Hi,
Quote
i did as you said and i run a new scan now
but the file is still in virus chest (should be there?)
As it says this is virus chest. You don't have to worry about, nothing can escape from there.
Or...you can empty virus chest if you will.

Quote
Also do u know what could be that file ?
Nothing, location points to system %temp% folder where various program place its temporary files during installation or some running.
As there are malware that know to use %temp% as loading point avast know to flag this junk files. TFC cleans all temp files.


Quote
Can you please help me again ?
Of course, but I think you're not infected. If you wish check, run this:







Please download Farbar Recovery Scan Tool (http://www.bleepingcomputer.com/download/farbar-recovery-scan-tool/) ((http://www.mcshield.net/personal/magna86/Images/FRST_canned.png)) 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.


Next...






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

Gmer download link (http://www2.gmer.net/download.php)
Note: file will be random named

Double-clicking to run GMER.
> Attach here both Gmer logreports. (ARK.txt and autostart.txt)
Title: Re: Win32:Malware-gen
Post by: Sweeters on December 06, 2013, 01:58:05 AM
"Of course, but I think you're not infected. If you wish check, run this"

wish no but yes i would like to do aaaand...

Here you are!

Thank you very much for your help!

P.S do you know any good links or books (yes there are still people who prefer paper than screen ) that i can learn more about internet/wifi/password security. this i would like to do is to build a secure pc!

or i want to become like you?

Thanks again
Title: Re: Win32:Malware-gen
Post by: magna86 on December 06, 2013, 01:59:10 PM
Hi,

Do not be alarm on Gmer's Rootkit warnings, they are avast related driver.


Start > ControlPanel > remove the following:
BS Player ControlBar Toolbar for IE (x32 Version: 6.17.1.25)



Then...

note: this isn't malware, they are just adware leftovers (bad toolbar values) and we are removing them...




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

Code: [Select]
Start
C:\Users\Antonis\AppData\Local\Conduit
C:\Program Files (x86)\BS_Player_ControlBar
C:\Users\Antonis\AppData\Local\CRE\cflheckfmhopnialghigdlggahiomebp.crx
HKCU\...\Run: [BackgroundContainer] - "C:\Windows\SysWOW64\Rundll32.exe" "C:\Users\Antonis\AppData\Local\Conduit\BackgroundContainer\BackgroundContainer.dll",DllRun <===== ATTENTION
HKCU\...\Policies\system: [LogonHoursAction] 2
HKCU\...\Policies\system: [DontDisplayLogonHoursWarnings] 1
MountPoints2: {5666d534-3431-11e3-94fb-18a905caaa67} - H:\setup.exe
HKU\Lucienka\...\Policies\system: [LogonHoursAction] 2
HKU\Lucienka\...\Policies\system: [DontDisplayLogonHoursWarnings] 1
HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = my.daemon-search.com
URLSearchHook: HKLM-x32 - BS Player ControlBar Toolbar - {fed66dc5-1b74-4a04-8f5c-15c5ace2b9a5} - C:\Program Files (x86)\BS_Player_ControlBar\prxtbBS_P.dll (Conduit Ltd.)
URLSearchHook: HKCU - BS Player ControlBar Toolbar - {fed66dc5-1b74-4a04-8f5c-15c5ace2b9a5} - C:\Program Files (x86)\BS_Player_ControlBar\prxtbBS_P.dll (Conduit Ltd.)
SearchScopes: HKCU - {AD22EBAF-0D18-4fc7-90CC-5EA0ABBE9EB8} URL = http://www.daemon-search.com/search?q={searchTerms}
BHO-x32: BS Player ControlBar Toolbar - {fed66dc5-1b74-4a04-8f5c-15c5ace2b9a5} - C:\Program Files (x86)\BS_Player_ControlBar\prxtbBS_P.dll (Conduit Ltd.)
Toolbar: HKLM-x32 - BS Player ControlBar Toolbar - {fed66dc5-1b74-4a04-8f5c-15c5ace2b9a5} - C:\Program Files (x86)\BS_Player_ControlBar\prxtbBS_P.dll (Conduit Ltd.)
Toolbar: HKCU - No Name - {FED66DC5-1B74-4A04-8F5C-15C5ACE2B9A5} -  No File
CHR HKLM-x32\...\Chrome\Extension: [cflheckfmhopnialghigdlggahiomebp] - C:\Users\Antonis\AppData\Local\CRE\cflheckfmhopnialghigdlggahiomebp.crx
Task: {032959A5-A6A7-42C6-9B35-0CBE8835FFA8} - System32\Tasks\BackgroundContainer Startup Task => C:\Users\Antonis\AppData\Local\Conduit\BackgroundContainer\BackgroundContainer.dll [2013-10-15] (Conduit Ltd.) <==== ATTENTION
AlternateDataStreams: C:\ProgramData\TEMP:C31F31E6
AlternateDataStreams: C:\Users\Antonis\Cookies:cXgwAEbKFHTXn9yyVrBxxaDYF
AlternateDataStreams: C:\Users\Antonis\AppData\Local\EadHWeQGYJSi93:QRgnEnpqhFkalTfgHgtJk0Q0
CMD: ipconfig /all
End
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.
Title: Re: Win32:Malware-gen
Post by: Sweeters on December 06, 2013, 02:10:10 PM
First step i did

but for the second i had second thoughts about it

Could you please explain me what will do ? was my question

please find attached the report

Thank you!
 
Friendly,
Title: Re: Win32:Malware-gen
Post by: magna86 on December 06, 2013, 03:30:07 PM
Quote
P.S do you know any good links or books (yes there are still people who prefer paper than screen ) that i can learn more about internet/wifi/password security. this i would like to do is to build a secure pc!
Unfortunately, I do not have non a single link at hand.  :(

Quote
or i want to become like you?
If you wanna learn how to fight malware, I recommend next school with English based language:

http://www.techsupportforum.com/forums/
http://www.geekstogo.com/forum/
http://www.bleepingcomputer.com/forums/


My home forum also provide malware removal school but they are non-English language based.


Quote
Could you please explain me what will do ? was my question
This I do not understand. To do with what?


-------------------------


Fix went fine. How's your computer running now?
Title: Re: Win32:Malware-gen
Post by: Sweeters on December 06, 2013, 03:37:34 PM
Hi and thanks for everything
Computer is running fine

but also before was fine just Avast found all these and i said to get rid of them

Many many thanks for everything
if everything was in balance i will be sure that all this "good" will come back to you, now i just hope so :)

Have a good day
Antonis

P.S i will take a look

Title: Re: Win32:Malware-gen
Post by: magna86 on December 06, 2013, 03:41:57 PM
 :)
You are malware (http://en.wikipedia.org/wiki/Malware) free.   Posted logs are now appear cleans and show no signs of active infection.




Good workman always cleans up after himself.
The following will implement some post-cleanup procedures:

=> Please download DelFix (http://general-changelog-team.fr/fr/downloads/finish/20-outils-de-xplode/9-delfix) by Xplode to your Desktop.

Run the tool and check the following boxes below;
(http://www.mcshield.net/personal/magna86/Images/checkmark.png) Remove disinfection tools
(http://www.mcshield.net/personal/magna86/Images/checkmark.png) Create registry backup
(http://www.mcshield.net/personal/magna86/Images/checkmark.png) Purge System Restore

Click Run button and wait a few seconds for the programme completes his work.
At this point all the tools we used here should be gone. Tool will create an report for you (C:\DelFix.txt)

The tool will also record healthy state of registry and make a backup using ERUNT program in %windir%\ERUNT\DelFix
Tool deletes old system restore points and create a fresh system restore point after cleaning.



---    ---    ---    ---    ---    ---    ---    ---    ---    ---    ---


To help AntiVirus to protect your computer and speed it up, I recommend that you download, install and keep the following free programs:
1. Keep Malwarebytes Anti-Malware (http://www.malwarebytes.org/mbam-download.php), update it regularly or from time to time and run a Quick Scan weekly.
Malwarebytes will detect and remove all traces of known malware. MBAM isn't AntiVirus and it can NOT replace it.

2. Keep MCShield Anti-Malware (http://www.mcshield.net/downloads.html), the tool will be updated regularly and perform auto-checking for malware to each attached USB memory device.
MCShield, has been designed as a lightweight scanner that's smart enough to catch even new worms and work in fully automatic removal mode.

3. It’s recommended to delete Temporary Files every once in a while. Run the tool and click on the Start button and TFC will begin to clean. Then restart the computer.
Temp File Cleaner aka TFC by OldTimer (http://www.geekstogo.com/forum/files/file/187-tfc-temp-file-cleaner-by-oldtimer/)
TFC is small & usefull utility that shall clean up temp files from all userprofiles and system folders.


---      ---      ---      ---      ---      ---      ---      ---      ---      ---      ---


How to protect yourself?
-  I recommend that you use one of the fantastic opportunities provided by (http://www.mcshield.net/pg/images/avast5.png) avast! 2014.

1. Adjust avast! to target PUP (http://computersecurity.wikia.com/wiki/Potentially_unwanted_program) software:
Run avast! 2014 by clicking the system tray icon in the lower right corner of the screen.
Click on Settings, in the new window that opens, click on Active Protection, then under File System Shield click on gear wheel...
Under Sensitivity part of option check box for Scan for potentialy unwanted programs PUP.


2. avast! Software Updater. Run avast!, click on Tools > Software Updater.
For security reasons, make sure you do update your browser(s), Java, Flash Player, and basically every software you use often.

3. avast! Browser Cleanup.  Run avast!, click on Tools > BrowserCleanup.
Browser Cleanup tool is an integrated tool in avast! AV that allows you the control on browsers unwanted addons.

4. avast! Malware Scan. Run avast!, click on Scan and preform QuickScan by clicking on Start button.
Every once in a whilere, it's recommended to preform virus scan with avast! 2014.

Windows Updates, beeing up to date is very important. Please be sure to activate automatic updates in your control panel.
Widnows XP (http://support.microsoft.com/kb/306525); Windows Vista (http://windows.microsoft.com/en-US/windows-vista/Understanding-Windows-automatic-updating); Windows 7 (http://windows.microsoft.com/en-US/windows7/Understanding-Windows-automatic-updating) and Windows 8 (http://windows.microsoft.com/en-us/windows-8/windows-update-faq)