From; Sophos Alert System: Name: W32/Mytob-E Aliases: WORM_MYTOB.J, Net-Worm.Win32.Mytob.h, W32/Mytob.gen@MM Type: Win32 worm Date: 30 April 2005 A virus identity (IDE) file which provides protection is available now from the Sophos website, and will be incorporated into the June 2005 (3.94) release of Sophos Anti-Virus. Customers using EM Library, PureMessage or any of our Sophos small business solutions will be automatically protected at their next scheduled update. At the time of writing, Sophos has received a small number of reports of this worm from the wild. Note: The IDE issued for W32/Mytob-E at 08:15 GMT on 25 March also contained detection for W32/Mytob-F. This IDE has now been updated to enhance detection of W32/Mytob-E. Information about W32/Mytob-E can be found at: http://www.sophos.com/virusinfo/analyses/w32mytobe.html W32/Mytob-E is a mass-mailing worm and backdoor Trojan that targets users of Internet Relay Chat programs. When first run W32/Mytob-E copies itself to the Windows system folder as taskgmr.exe and creates the following registry entries: HKCU\Software\Microsoft\OLE WINTASK taskgmr.exe HKCU\SYSTEM\CurrentControlSet\Control\Lsa WINTASK taskgmr.exe HKCU\Software\Microsoft\Windows\CurrentVersion\Run WINTASK taskgmr.exe HKLM\SOFTWARE\Microsoft\Ole WINTASK taskgmr.exe HKLM\SYSTEM\CurrentControlSet\Control\Lsa WINTASK taskgmr.exe HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run WINTASK taskgmr.exe HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices WINTASK taskgmr.exe W32/Mytob-E copies itself to the root folder as: funny_pic.scr my_photo2005.scr see_this!!.scr and creates the helper file hellmsn.exe (detected by Sophos as W32/Mytob-D) in the same location. W32/Mytob-E also appends the following to the HOSTS file to deny access to security related websites: 127.0.0.1 www.symantec.com 127.0.0.1 securityresponse.symantec.com 127.0.0.1 symantec.com 127.0.0.1 www.sophos.com 127.0.0.1 sophos.com 127.0.0.1 www.mcafee.com 127.0.0.1 mcafee.com 127.0.0.1 liveupdate.symantecliveupdate.com 127.0.0.1 www.viruslist.com 127.0.0.1 viruslist.com 127.0.0.1 viruslist.com 127.0.0.1 f-secure.com 127.0.0.1 www.f-secure.com 127.0.0.1 kaspersky.com 127.0.0.1 www.avp.com 127.0.0.1 www.kaspersky.com 127.0.0.1 avp.com 127.0.0.1 www.networkassociates.com 127.0.0.1 networkassociates.com 127.0.0.1 www.ca.com 127.0.0.1 ca.com 127.0.0.1 mast.mcafee.com 127.0.0.1 my-etrust.com 127.0.0.1 www.my-etrust.com 127.0.0.1 download.mcafee.com 127.0.0.1 dispatch.mcafee.com 127.0.0.1 secure.nai.com 127.0.0.1 nai.com 127.0.0.1 www.nai.com 127.0.0.1 update.symantec.com 127.0.0.1 updates.symantec.com 127.0.0.1 us.mcafee.com 127.0.0.1 liveupdate.symantec.com 127.0.0.1 customer.symantec.com 127.0.0.1 rads.mcafee.com 127.0.0.1 trendmicro.com 127.0.0.1 www.microsoft.com 127.0.0.1 www.trendmicro.com This IDE file also includes detection for: W32/Mytob-F http://www.sophos.com/virusinfo/analyses/w32mytobf.html Download the IDE file from: http://www.sophos.com/downloads/ide/mytob-e.ide Download all the IDE files available for the current version of Sophos Anti-Virus in a single compressed file. The file is available in two formats: Zip file: http://www.sophos.com/downloads/ide/ides.zip Self-extracting file: http://www.sophos.com/downloads/ide/ides.exe Read about how to use IDE files at http://www.sophos.com/downloads/ide/using.html *********** MIKE"S REPLY SEPARATOR *********** Mike ~ It is a good day if I learned something new. Editor MikesWhatsNews see a sample on my web page http://www3.telus.net/mikebike <mikeswhatsnews-request@xxxxxxxxxxxxx?Subject=subscribe> http://www3.telus.net/mikebike/worm_removal.htm See my Anti-Virus pages http://virusinfo.hackfix.org/index <virusinfo-request@xxxxxxxxxxxxx?Subject=subscribe> A Technical Support Alliance and OWTA Charter Member