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Guru
Posts: 1,525
Registered: ‎05-29-2010
Location: SG
Views: 668
Message 1 of 8

W520 - Things went wrong even after malware cleared from the system.

Hi all,

 

This https://s-hphotos-ash4.fbcdn.net/266595_10150235955672730_716037729_7316157_8173605_o.jpg happens after the malware was spread from my lecturer's laptop > my portable hdd > to my W520.

W520 - 4284-A99 - Windows 7 Ultimate SP1

So far, I have tried:
System Restore (being erased away after infected)
Run Full Scan with Symantec Endpoint Protection 11 MR6 RU3
Run Full Scan with ESET Smart Security Business Edition 4.2.71.2

Run HijackThis and remove some files.
Reinstalled IE9

But the problem still exist, if im not wrong, currently only IE is being damaged.

Should I do a repair installation or reinstallation of Windows?

Thank You

Peter

=============================================
Does someone post helps you? Give them a kudos as a reward, as they will do better to improve :smileyvery-happy:

Refunded Set: W510, 4876-A11
Current Set: W520, 4284-A99

 

I would welcome T520 or W520 users to try this sound optimization:
http://forums.lenovo.com/t5/W-Series-ThinkPad-Laptops/W520-Sound-Enhancement-Thread/m-p/451401#M1551...



Guru
Posts: 9,598
Registered: ‎12-26-2009
Location: CA
Views: 656
Message 2 of 8

Re: W520 - Things went wrong even after malware cleared from the system.

Try Kaspersky's bootable rescue disc; Kaspersky Labs is generally good at cleaning off malware after the fact. This also helps bypass all but the most serious of rootkits.

Also try disabling hardware acceleration in IE9. Does it happen in the latest Firefox?

Personally, I'd never trust a Windows install that has been infected.

I'd also reconsider your software security solution if it let it in in the first place.


W520: 2960XM, Q2000M @ 1091/1380, 32GB RAM, 500GB&750GB HDD & 500GB SSD, FHD&MB168B+
X61T: L7500, 4GB RAM, 500GB HDD, XGA screen, Ultrabase
W550s: 5600U, K620M at 1164/1281, 16GB RAM, 512GB SSD, 3K touchscreen
X200s: SL9400, 6GB RAM, 64GB SD card, WXGA+ screen
TPT1: 1839-23U
Guru
Posts: 1,525
Registered: ‎05-29-2010
Location: SG
Views: 645
Message 3 of 8

Re: W520 - Things went wrong even after malware cleared from the system.

Ok. Anyway, thanks. I just do a factory-restore yesterday, as it starts to worsen, slow I/O performance. Download stuff halfway and even internal drives will disconnect. I am very sure it isn;t hardware problem.

Symantec Endpoint Protection is only installed after the infection. I think I need to do something to tighten security and get some bootable rescue disc.

By the way, how do you think about using 2 antivirus at the same time on a computer? Some of my school lecturer did that, as they said 2 different antivirus catches near 100% of threats. But the downside is performance and more false-positive results.

Thank You
Peter

=============================================
Does someone post helps you? Give them a kudos as a reward, as they will do better to improve

Refunded Set: W510, 4876-A11
Current Set: W520, 4284-A99

 

I would welcome T520 or W520 users to try this sound optimization:
http://forums.lenovo.com/t5/W-Series-ThinkPad-Lapt​ops/W520-Sound-Enhancement-Thread/m-p/451401#M155...

Community SeniorMod
Community SeniorMod
Posts: 1,989
Registered: ‎05-01-2010
Location: US
Views: 636
Message 4 of 8

Re: W520 - Things went wrong even after malware cleared from the system.

Hi PeterTWJ,

ColonelONeill, has been working with you, so I will let the two of you continue until the malware issue is resolved. However, I would like to comment on the question regarding two AV's.

 

Anti-Virus programs take up an enormous amount of your computer's resources when they are actively scanning your computer. Having two anti-virus programs running at the same time can cause your computer to run very slowly, to become unstable, and even, in rare cases, to crash.

With more than one anti-virus program on the same computer, there is a chance for conflicts if a machine becomes infected. At that point each of the anti-virus programs wants to "control" the situation and in some cases, the job of removing the virus doesn't get done at all.  In addition, you will experience slowdown as each is trying to run in realtime.


A better option would be to install one good anti-virus, keep it current, and use it as designed. If a second opinion is needed, use one of the online virus scanners or run one as an “On-Demand” scanner only. In other words, if you choose to install more than one anti-virus program on your computer, then only one of them should be active in memory at a time.

Regards, 

Bugbatter












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SpywareHammer





Guru
Posts: 9,598
Registered: ‎12-26-2009
Location: CA
Views: 625
Message 5 of 8

Re: W520 - Things went wrong even after malware cleared from the system.

Agreed. I use Kaspersky because it's quite good at catching threats. Changing some settings boosts it's performance a bit. Some products combine two antivirus engines, but as Bugbatter said, it tends to decrease system responsiveness.

Try an Ubuntu boot disc just to be sure.

Could it be a BIOS virus?

W520: 2960XM, Q2000M @ 1091/1380, 32GB RAM, 500GB&750GB HDD & 500GB SSD, FHD&MB168B+
X61T: L7500, 4GB RAM, 500GB HDD, XGA screen, Ultrabase
W550s: 5600U, K620M at 1164/1281, 16GB RAM, 512GB SSD, 3K touchscreen
X200s: SL9400, 6GB RAM, 64GB SD card, WXGA+ screen
TPT1: 1839-23U
Guru
Posts: 1,525
Registered: ‎05-29-2010
Location: SG
Views: 618
Message 6 of 8

Re: W520 - Things went wrong even after malware cleared from the system.

Thank you so much ColonelONeill and Bugbatter for the follow up, the people here is good in following up to help one another. I tried other forums like HP for my Compaq laptop, no one even responded.

Maybe I should stick to Symantec Endpoint Protection, as so far I use it on other PCs, infected external drives were clean and threats would be stopped from spreading to cause further damage. At first, I would try ESET Smart Security Business Edition due to lightweight on system, but don't know why it isn't effective?

Performance worsen, etc should be due to hard disk failure:
http://forums.lenovo.com/t5/W-Series-ThinkPad-Laptops/Suggestions-for-W520-optimus/td-p/490159

I got a copy of Kaspersky Rescue Disc and Symantec Endpoint Recovery Tool just in case of the same scenario happens again.

By the way, does BIOS or floppy virus still exist? I didn't heard of this for a long time.

Once again 

Thank You

Peter

=============================================
Does someone post helps you? Give them a kudos as a reward, as they will do better to improve :smileyvery-happy:

Refunded Set: W510, 4876-A11
Current Set: W520, 4284-A99

 

I would welcome T520 or W520 users to try this sound optimization:
http://forums.lenovo.com/t5/W-Series-ThinkPad-Laptops/W520-Sound-Enhancement-Thread/m-p/451401#M1551...

Guru
Posts: 9,598
Registered: ‎12-26-2009
Location: CA
Views: 608
Message 7 of 8

Re: W520 - Things went wrong even after malware cleared from the system.

Yeah, Kaspersky is a bit heavy but it's okay on my T400.

I haven't heard of any recent BIOS viruses.

Personally I don't trust Seagate disks. WD all the way. Smiley Tongue
Too bad Lenovo doesn't source any of those.

W520: 2960XM, Q2000M @ 1091/1380, 32GB RAM, 500GB&750GB HDD & 500GB SSD, FHD&MB168B+
X61T: L7500, 4GB RAM, 500GB HDD, XGA screen, Ultrabase
W550s: 5600U, K620M at 1164/1281, 16GB RAM, 512GB SSD, 3K touchscreen
X200s: SL9400, 6GB RAM, 64GB SD card, WXGA+ screen
TPT1: 1839-23U
Community SeniorMod
Community SeniorMod
Posts: 3,311
Registered: ‎12-01-2007
Location: US
Views: 603
Message 8 of 8

Re: W520 - Things went wrong even after malware cleared from the system.

Hello,


Since you have licenses for both Symantec and ESET's business products, why not give one of their tech support department a call, explain the symptoms and ask for assistance in restoring the system to preinfection behavior?  I think both companies have offices in Singapore.

 

Regards,

 

Aryeh Goretsky

 



I am a volunteer and neither a Lenovo nor a Microsoft employee.

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