TROJ_KATHER.A
QUICK LINKS Solution
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Virus type: Trojan
Destructive: No
Aliases: Win32.Kather, Win32/Kather
Overall risk rating: Very Low
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Reported infections: Low
Damage Potential: Low
Distribution Potential: Low
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Description:
This non-memory resident Trojan disguises itself as a non-malicious animation file. Upon execution, it opens an Internet browser window and runs a dropped animation file, Illus_Ch.swf, which is in Chinese.
In the background, this Trojan drops another file, Winss.exe, which sets the home page to:
http://cn.yahoo.com.
This Trojan runs on Windows 95, 98, ME, NT, 2000, and XP.
Solution:
Removing Autostart Entries from the Registry
Removing autostart entries from the registry prevents the malware from executing during startup.
Open Registry Editor. To do this, click Start>Run, type REGEDIT, then press Enter.
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>Software>Microsoft>
Windows>CurrentVersion>Run
In the right panel, locate and delete the entry:
MSOleath32
Close Registry Editor.
Resetting Internet Explorer Home Page and Search Page
This procedure restores the Internet Explorer home page and search page to the default settings.
* Close all Internet Explorer windows.
* Open Control Panel. Click Start>Settings>Control Panel
* Double-click the Internet Options icon.
* In the Internet Properties window, click the Programs tab.
* Click the “Reset Web Settings…” button.
* Select “Also reset my home page.” Click Yes.
* Click OK.