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 | Win.Trojan.Agent FOUND - Windows Preinstallation Environment |  |
davehatpec
Joined: 01 Feb 2017 |
Posts: 0 |
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Posted: Sun Nov 26, 2017 3:53 pm |
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Not sure what this is, why it's returning FOUND for Trojans, or whether I should try to remove them or how exactly:
(edited from Notepad++)
Search "FOUND" (21 hits in 1 file)
Line 3: Line 15: C:\Program Files (x86)\Windows Kits\8.0\Assessment and Deployment Kit\Windows Preinstallation Environment\amd64\WinPE_OCs\de-de\WinPE-WDS-Tools_de-de.cab: Win.Trojan.Agent-6163993-0 FOUND
Line 4: Line 17: C:\Program Files (x86)\Windows Kits\8.0\Assessment and Deployment Kit\Windows Preinstallation Environment\amd64\WinPE_OCs\sv-se\lp.cab: Win.Trojan.Agent-5596042-0 FOUND
Line 5: Line 19: C:\Program Files (x86)\Windows Kits\8.0\Assessment and Deployment Kit\Windows Preinstallation Environment\amd64\WinPE_OCs\sv-se\WinPE-SRT_sv-se.cab: Win.Trojan.Agent-5592516-0 FOUND
Line 6: Line 21: C:\Program Files (x86)\Windows Kits\8.0\Assessment and Deployment Kit\Windows Preinstallation Environment\x86\WinPE_OCs\de-de\WinPE-WDS-Tools_de-de.cab: Win.Trojan.Agent-6163993-0 FOUND
Line 7: Line 23: C:\Program Files (x86)\Windows Kits\8.0\Assessment and Deployment Kit\Windows Preinstallation Environment\x86\WinPE_OCs\sv-se\WinPE-SRT_sv-se.cab: Win.Trojan.Agent-5592516-0 FOUND
Line 10: Line 1565: C:\Program Files (x86)\Windows Kits\8.0\Assessment and Deployment Kit\Windows Preinstallation Environment\amd64\WinPE_OCs\de-de\WinPE-WDS-Tools_de-de.cab: Win.Trojan.Agent-6163993-0 FOUND
Line 11: Line 1567: C:\Program Files (x86)\Windows Kits\8.0\Assessment and Deployment Kit\Windows Preinstallation Environment\amd64\WinPE_OCs\sv-se\lp.cab: Win.Trojan.Agent-5596042-0 FOUND
Line 12: Line 1569: C:\Program Files (x86)\Windows Kits\8.0\Assessment and Deployment Kit\Windows Preinstallation Environment\amd64\WinPE_OCs\sv-se\WinPE-SRT_sv-se.cab: Win.Trojan.Agent-5592516-0 FOUND
Line 13: Line 1571: C:\Program Files (x86)\Windows Kits\8.0\Assessment and Deployment Kit\Windows Preinstallation Environment\x86\WinPE_OCs\de-de\WinPE-WDS-Tools_de-de.cab: Win.Trojan.Agent-6163993-0 FOUND
Line 14: Line 1573: C:\Program Files (x86)\Windows Kits\8.0\Assessment and Deployment Kit\Windows Preinstallation Environment\x86\WinPE_OCs\sv-se\WinPE-SRT_sv-se.cab: Win.Trojan.Agent-5592516-0 FOUND
Line 17: Line 3115: C:\Program Files (x86)\Windows Kits\8.0\Assessment and Deployment Kit\Windows Preinstallation Environment\amd64\WinPE_OCs\de-de\WinPE-WDS-Tools_de-de.cab: Win.Trojan.Agent-6163993-0 FOUND
Line 18: Line 3117: C:\Program Files (x86)\Windows Kits\8.0\Assessment and Deployment Kit\Windows Preinstallation Environment\amd64\WinPE_OCs\sv-se\lp.cab: Win.Trojan.Agent-5596042-0 FOUND
Line 19: Line 3119: C:\Program Files (x86)\Windows Kits\8.0\Assessment and Deployment Kit\Windows Preinstallation Environment\amd64\WinPE_OCs\sv-se\WinPE-SRT_sv-se.cab: Win.Trojan.Agent-5592516-0 FOUND
Line 20: Line 3121: C:\Program Files (x86)\Windows Kits\8.0\Assessment and Deployment Kit\Windows Preinstallation Environment\x86\WinPE_OCs\de-de\WinPE-WDS-Tools_de-de.cab: Win.Trojan.Agent-6163993-0 FOUND
Line 21: Line 3123: C:\Program Files (x86)\Windows Kits\8.0\Assessment and Deployment Kit\Windows Preinstallation Environment\x86\WinPE_OCs\sv-se\WinPE-SRT_sv-se.cab: Win.Trojan.Agent-5592516-0 FOUND
Line 24: Line 4698: C:\Program Files (x86)\Windows Kits\8.0\Assessment and Deployment Kit\Windows Preinstallation Environment\amd64\WinPE_OCs\de-de\WinPE-WDS-Tools_de-de.cab: Win.Trojan.Agent-6163993-0 FOUND
Line 25: Line 4700: C:\Program Files (x86)\Windows Kits\8.0\Assessment and Deployment Kit\Windows Preinstallation Environment\amd64\WinPE_OCs\sv-se\lp.cab: Win.Trojan.Agent-5596042-0 FOUND
Line 26: Line 4702: C:\Program Files (x86)\Windows Kits\8.0\Assessment and Deployment Kit\Windows Preinstallation Environment\amd64\WinPE_OCs\sv-se\WinPE-SRT_sv-se.cab: Win.Trojan.Agent-5592516-0 FOUND
Line 27: Line 4704: C:\Program Files (x86)\Windows Kits\8.0\Assessment and Deployment Kit\Windows Preinstallation Environment\x86\WinPE_OCs\de-de\WinPE-WDS-Tools_de-de.cab: Win.Trojan.Agent-6163993-0 FOUND
Line 28: Line 4706: C:\Program Files (x86)\Windows Kits\8.0\Assessment and Deployment Kit\Windows Preinstallation Environment\x86\WinPE_OCs\sv-se\WinPE-SRT_sv-se.cab: Win.Trojan.Agent-5592516-0 FOUND
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GuitarBob
Joined: 09 Jul 2006 |
Posts: 9 |
Location: USA |
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Posted: Sun Nov 26, 2017 4:06 pm |
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If you have more than a couple of detections for the same virus, it is very likely to be a false positive detection. Did ClamWin quarantine or remove the file(s) involved? ClamWin has some protection for false positive detections of important Windows files. If you still have the files, I suggest that you upload a couple of them (one at a time) to Virus Total and see what the 60 or so AVs there see a virus in them. If Clam AV (ClamWin uses the Clam AV scan engine/virus signatures) is the only AV detecting them, Virus Total will send the files to Clam AV so they can correct their false signatures. This might take a while though. You may be able to speed it up a little if you send the same files to Clam AV at https://www.clamav.net/contact on the web. Be sure to select the False Positive report option.
If the false detection(s) is a problem for you, you can exclude/whitelist the files (or their folder) in ClamWin's Tools, Preferences, Filters, Exclude Matching Fillenames option. Check the ClamWin Help, Manual menu.
Thanks for using ClamWin!
Regards,
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Lipper
Joined: 31 Oct 2010 |
Posts: 0 |
Location: USA |
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Posted: Sun Nov 26, 2017 5:18 pm |
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I have submitted some of these false positives to ClamAV at least twice in the last few months. I have given up on ClamAV fixing them and have just excluded the entire folder. Notice the date on one of my VirusTotal submissions: https://www.virustotal.com/#/file/be9009c54c478b87277a8d4d5b019821d8b017f86ab48b0e5cea4f02a76bb011/detection
Regards,
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GuitarBob
Joined: 09 Jul 2006 |
Posts: 9 |
Location: USA |
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Posted: Sun Nov 26, 2017 9:12 pm |
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Thanks for the info, Lipper. I don't know what's wrong at Clam AV now. They are supposed to get a feed from Virus Total when they have a false positive to aid in correction, but they appear not to have anyone working on Clam AV at any time now. I see that they have not even updated their blog about their problem with updates from several weeks ago.
All we can do with ClamWin is exclude/whitelist the file/folder for false positives and check the file with Virus Total every week or so to see when/if Clam AV corrects their signature. I hope every ClamWin user who can is using a real-time AV for primary protection with ClamWin as backup only. I have stopped my scheduled scanning due to false positives.
Regards,
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Lipper
Joined: 31 Oct 2010 |
Posts: 0 |
Location: USA |
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Posted: Mon Nov 27, 2017 1:55 am |
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Greetings Bob, and thank you for your comments. Yes, it is a mystery why ClamAV hasn't yet addressed these false positives. In order to rule out a difference in scan engines between .99.1 and .99.2, I scanned my Win 7 partition from Linux with ClamAV .99.2 installed. There was no difference in detection.
Regards,
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Lipper
Joined: 31 Oct 2010 |
Posts: 0 |
Location: USA |
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Posted: Thu Dec 21, 2017 1:57 am |
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Clam AV has apparently started fixing these FPs. Scanning with DB 24147, I now only have two remaining FPs in the (Win 7) Windows Kits folder which are:
WinPE-SRT_sv-se.cab (amd64 folder)
https://www.virustotal.com/en/file/4798e5212f9fa950e9190d12fb4029fb47962ce77a83371745f20556886ded41/analysis/1513818034/
WinPE-SRT_sv-se.cab (x86 folder)
https://www.virustotal.com/en/file/17d7dff2f77230f06c46ccfdf1238b1b03da30aff112eae6e5bad895187f6918/analysis/1513817964/
If not corrected in one week, I will resubmit these last items.
Lipper
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GuitarBob
Joined: 09 Jul 2006 |
Posts: 9 |
Location: USA |
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Posted: Thu Dec 21, 2017 2:55 am |
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It might take Clam AV much longer to correct the remaining FPs, Lipper. I think they will get to it eventually--that folder is pretty important.
Merry XMAS to you!
Regards,
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Lipper
Joined: 31 Oct 2010 |
Posts: 0 |
Location: USA |
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Posted: Thu Dec 21, 2017 8:29 pm |
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Yes, you may be right. Thank you for the holiday greeting, and the same to you and yours.
As ever,
Lipper
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