From; Sophos Alert System: Name: Troj/PurScan-W Aliases: Trojan-Dropper.Win32.PurityScan.l Type: Trojan Date: 23 March 2005 A virus identity (IDE) file which provides protection is available now from the Sophos website, and will be incorporated into the May 2005 (3.93) 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 Trojan from the wild. Information about Troj/PurScan-W can be found at: http://www.sophos.com/virusinfo/analyses/trojpurscanw.html Troj/PurScan-W is a dropper Trojan for the Windows platform that also changes the browser security settings and attempts to open predefined URL. Once executed Troj/PurScan-W drops to the Temp folder and runs installer.exe and mt-uninstaller.exe which are adware related installer and uninstaller. Also Troj/PurScan-W changes the browser security settings by modifying registry entries under the following entry: HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3 Troj/PurScan-W tries to establish an internet connection in attempt to download files from the predefined web location. This IDE file also includes detection for: Troj/HacDef-O http://www.sophos.com/virusinfo/analyses/trojhacdefo.html Troj/ServU-AP http://www.sophos.com/virusinfo/analyses/trojservuap.html W32/Agobot-RA http://www.sophos.com/virusinfo/analyses/w32agobotra.html W32/Sdbot-WD http://www.sophos.com/virusinfo/analyses/w32sdbotwd.html Troj/Singu-Q http://www.sophos.com/virusinfo/analyses/trojsinguq.html W32/Rizon-A http://www.sophos.com/virusinfo/analyses/w32rizona.html Download the IDE file from: http://www.sophos.com/downloads/ide/pursca-w.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
