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PUP issues


hlzz43
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Hi.
I have had issues with some PUPs and was wondering if someone could shed some light on them. A while ago, out of the blue, Malwarebytes found 6 PUPs on my system. I hadn't installed any new software, so i was a little confused, but deleted them. A short while later I did a factory reset on my computer, and was surprised to find that when I reinstalled Malwarebytes the same PUPs i had seen earlier showed up in the scan again. Bear in mind that they had not shown up in subsequent scans prior to the reset. Here is the scan log (I was still using the old version when this happened):

OS: Windows 7 Service Pack 1
CPU: x64
File System: NTFS

Scan Type: Threat Scan
Result: Completed
Objects Scanned: 267984
Time Elapsed: 19 min, 24 sec

Memory: Enabled
Startup: Enabled
Filesystem: Enabled
Archives: Enabled
Rootkits: Disabled
Heuristics: Enabled
PUP: Enabled
PUM: Enabled

Processes: 0
(No malicious items detected)

Modules: 0
(No malicious items detected)

Registry Keys: 3
PUP.Optional.ASK, HKLM\SOFTWARE\MICROSOFT\INTERNET EXPLORER\SEARCHSCOPES\{2FA28606-DE77-4029-AF96-B231E3B8F827}, Quarantined, [e2fbb90b217933037ba3b713ac57c040], 
PUP.Optional.ASK, HKLM\SOFTWARE\WOW6432NODE\MICROSOFT\INTERNET EXPLORER\SEARCHSCOPES\{2FA28606-DE77-4029-AF96-B231E3B8F827}, Quarantined, [7469dbe99a00c96d62bc4387966da55b], 
PUP.Optional.ASK, HKU\S-1-5-21-3229545797-3483317972-2539771611-1001\SOFTWARE\MICROSOFT\INTERNET EXPLORER\SEARCHSCOPES\{2FA28606-DE77-4029-AF96-B231E3B8F827}, Quarantined, [3ca1fbc9336795a1041b557531d248b8], 

Registry Values: 3
PUP.Optional.ASK, HKLM\SOFTWARE\MICROSOFT\INTERNET EXPLORER\SEARCHSCOPES\{2fa28606-de77-4029-af96-b231e3b8f827}|URL, http://search.ask.com/web?q={searchTerms}&l=dis&o=HPNTDF, Quarantined, [e2fbb90b217933037ba3b713ac57c040]
PUP.Optional.ASK, HKLM\SOFTWARE\WOW6432NODE\MICROSOFT\INTERNET EXPLORER\SEARCHSCOPES\{2fa28606-de77-4029-af96-b231e3b8f827}|URL, http://search.ask.com/web?q={searchTerms}&l=dis&o=HPNTDF, Quarantined, [7469dbe99a00c96d62bc4387966da55b]
PUP.Optional.ASK, HKU\S-1-5-21-3229545797-3483317972-2539771611-1001\SOFTWARE\MICROSOFT\INTERNET EXPLORER\SEARCHSCOPES\{2fa28606-de77-4029-af96-b231e3b8f827}|URL, http://search.ask.com/web?q={searchTerms}&l=dis&o=HPNTDF, Quarantined, [3ca1fbc9336795a1041b557531d248b8]

Registry Data: 0
(No malicious items detected)

Folders: 0
(No malicious items detected)

Files: 0
(No malicious items detected)

Physical Sectors: 0
(No malicious items detected)


(end)

Like above, they were deleted 
So I'm not really sure what's going on here. Could they be part of the default software that comes with the reset? If so, why did MBAM suddenly flag them? Or do I possibly have some kind of threat? 
Any help would be very much appreciated.
 

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Sorry to double post, but there was another issue I wanted to ask about but forgot to put in the original post and making a second topic seems redundant. Prior to my factory reset, a full scan took around 2 hours; after the reset, it took 4 (before I upgraded to 3.0; full scans take around 2 hours with 3.0, but i don't really have any frame of reference for that being normal or not). While I seem to remember something similar happening the last time I did a factory reset, and it evening out over time, it seems unusual. The issue seems to be that the winsxs folder takes a really long time to scan, and this appears to be the case for both the old version and the new. Is this normal? 

Again, sorry to double post. If this is improper, I apologize. 

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