false positive trojan.downloader.cr64loader?

[Douglas S Stiles]

At every boot, Microsoft antispyware
reports "trojan.downloader.cr64loader" is trying to
install an active X download, and asks if I want to block
and remove it. I agree and it says it has been deleted,
asks if I want to run a full scan which I do and it
always finds the BHO ED1033D-3070-4580-ABJE-E5C179CAE41
in HKLM\Software\Microsoft\Windows\Current
Version\Explorer\BHO, I delete this but its back next
boot up when the procedure is repeated - (Trojan
detection and scan).
I have Ad-aware, Spybot, Trojan Hunter, Spyware Blaster,
BHO Demon2 etc installed but none of these ever finds
anything at all. (even in safe mode)
Is this a false positive? What do others think?
Regards
Douglas

 

[JohnF.]

If you are under attack and MSAS does not seem to help:

*Submit suspected spyware report in the tools menu of MSAS*

1. Download:
lspfix.exe www.cexx.org/lspfix.htm
winsockxpfix.exe www.snapfiles.com/get/winsockxpfix.html
ccleaner.exe www.ccleaner.com
killbox.exe www.bleepingcomputer.com/files/killbox.php

2. Reboot into safe mode - http://tinyurl.com/pfca

3. Clean out all temp file locations - ccleaner.exe
(be sure to configure to delete all temp files
and not just those 48 hours old or older)

4. Run MSAS at least twice in full/deep mode

5. Run a robust, updated antivirus software scan

6. Reboot into normal mode,see if problem has been corrected

7. Install and use killbox to delete stubborn files

8. If you think something is there but can't see it:
- Download:
Blacklight by F-Secure to look for rootkits
www.europe.f-secure.com/exclude/blacklight/blbeta.exe
RootKitRevealer by SysInternals
www.sysinternals.com/ntw2k/freeware/rootkitreveal.shtml

Battle Notes:
- If you have trojans (files that won't go away),
you may have to disable System Restore on XP:
http://tinyurl.com/movy

- If your Internet connectivity quits:
http://support.microsoft.com/kb/892350
http://support.microsoft.com/kb/811259
LSPFix - www.cexx.org/lspfix.htm
Winsockxpfix - www.snapfiles.com/get/winsockxpfix.html

- Install SpywareBlaster to block thousands of malware apps
from installing on your machine. It does not actively
run on your machine, you run it, it makes changes that
protect you.
http://www.javacoolsoftware.com/

- This program will not detect or remove viruses
http://www.microsoft.com/athome/security/viruses/default.mspx

**For a detailed attack plan **
http://spywarewarrior.com/sww-help.htm

*** For assistance in battling infestations***
- Get HijackThis.exe from:
http://tomcoyote.org/hjt/hjt199//HijackThis.exe
- Save it to C:\hjt (new folder)
- Open it and select "Scan and Save Log"
- Note where you saved the log
- Send it to Ron Kinner as an attachment
- Ron's email address is (e-mail address removed)
- Put Hijack in the subject so he knows it's not spam
- He will tell you what to do next


Application Notes:
Registering a VB6 dll seems to fix missing agents:
1) Open up a command prompt (start -> run -> cmd)
2) Type in the following "regsvr32 msvbvm60.dll" (without the quotes).
3) Close and re-open Windows AntiSpyware

- To report false positives:
www.microsoft.com/athome/security/spyware/software/isv/fpform.aspx

- To submit disputes or requests:
www.microsoft.com/athome/security/spyware/software/isv/cdform.aspx

- To learn more about how MS analyzes suspected spyware:
www.microsoft.com/athome/security/spyware/software/isv/analysis.mspx

Alternative Anti-Spyware Applications:
- Spybot Search and Destroy
http://www.majorgeeks.com/download2471.html
- LavaSoft AdAware
http://www.majorgeeks.com/download506.html
- AdAware VX2 Cleaner Plugin
http://www.majorgeeks.com/download4283.html
- BHODemon
http://www.majorgeeks.com/download3550.html
- CWShredder (CoolWWWSearch)
http://www.majorgeeks.com/download3019.html
- PestPatrol
http://www.majorgeeks.com/download1187.html
- Webroot Spysweeper
http://www.majorgeeks.com/download3263.html
- Spyware Doctor
http://www.majorgeeks.com/download4241.html
- Ewido Security Suite
http://www.ewido.net/en/

Recommended Software to help protect you:
- Windows XP Service Pack 2
http://www.microsoft.com/windowsxp/sp2/default.mspx
- SpywareBlaster
http://www.javacoolsoftware.com
- Outpost Firewall Pro
http://www.agnitum.com/products/outpost

 

[Andre Da Costa]

Try updating your AntiVirus program with the latest definitions and do a
scan in safe mode.

http://free.grisoft.com/freeweb.php/doc/1/