Sunday, 29 April 2007

Trojan Horses!

Giandomenico Tiepolo - The Trojan Horse (late 1700's)The webmaster of a multi-award-winning website recently applied for another award and was shocked when he received a reply warning him that "Symantec Antivirus detected a Trojan Horse at your index page"! The following details were supplied:
Risk Level 1: Very Low
Discovered: June 8, 2001
Updated: February 13, 2007 11:50:11 AM
Type: Trojan Horse
Infection Length: varies
Systems Affected: Windows 2000, 95, 98, Me, NT, XP.
The webmaster checked the source code at his website and found two lines of code that shouldn't have been there. They were directly under the code for his hit counter and bore the name "counter". So this trojan masquerades as a hit counter! It was easy enough to remove, but a week later it returned! In the meantime, the webmaster had subjected his own PC to a barrage of checks to insure that it wasn't infected. All clear. So, the trojan had been inserted via the World Wide Web, not via the webmaster's PC. We like to think that the code in our webspace is secure. It isn't. It's under attack! BBC News (title link) reports on this worrying new trend. If you know the "counter" trojan, please email me and I will forward details to the webmaster concerned.


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