Hi,
A few days ago, a laptop in the house was being swarmed by pop-ups in the chrome browser. I also noticed the presence of undesired software through control panel > programs (I can’t remember the name of these except one called LAVASOFT).
I then installed Avast which detected 5 threats using a full system scan. All of these were quarantined in the virus chest and subsequently deleted. Also, I noticed IE’s homepage had been changed to a page which looked like google, but the address bar was something else (can’t remember the name). I then ran Avast’s browser clean up tool which found and removed many low rated addons.
I then rescanned the computer which showed no threat. However, these undesired programs were still present. After searching for them, the setups for these were found in the AppData > local > temp folder. Again I scanned this folder and no threat was found, so I deleted the files in it along with chrome.
After restarting the computer, Avast kept detecting (maybe twice an hour) a threat which went something along the lines of:
Object: www.reddie…
Infection: URL:Mal
Process: C:\Windows\System32\svchost.exe
Whilst these detections were happening, the laptop was downloading and installing windows updates. For whatever reason, these weren’t set to automatic prior to this and so this was about 900mb worth of updates. I noticed some of these updates were related to ‘security’ and thought they would maybe cure the problem.
After the necessary restart, Avast stopped detecting the above issue and instead detected this:
Object: C:\ProgramData\2355320829\BIT782D.tmp
Infection: Win32:Malware-gen
Action: Moved to chest
Process: C:\Windows\System32\regsvr32.exe
Since these (two files) have been moved to the chest, there has been no more detections (for days). Also, when running a full system scan no viruses are found. The browser tool doesn’t detect any issues and IE’s homepage has returned to bing.
I’m not entirely convinced the computer is safe and would like some help/advice to make it safe. During this time I’ve had a look online and seen in such cases there are necessary malware removal steps to take. Perhaps I should’ve done this initially, but it is too late now. Am I still required to go through these steps and if so where do I start?
Thanks in advance
Apologies for the long post. I just think it is helpful to note everything that has happened since the problem was first discovered.
UPDATE:
Since writing the above, I have found & read the pinned posts on this forum.
What to do if a file is infected?
- Detection: As described above, there were many pop-ups etc and then Avast was installed which found threats when running the first ‘Full System Scan’.
- Unsure
- Unsure
- Unsure
- Avast threat messages shown above
Logs to assist in cleaning malware
Logs attached