Tritose86V5

Tritose86V5 was a short lived trojan horse that appeared in Watercolor Sheep Racing on October 20, 2002 and lasted until December 6, 2002. Unlike other later trojan horses, this one did not replicate itself or transmit any viruses, but often attempted to scam others by upgrading their PC, which appeared in 4 different places. The virus was not harmful to player clients.

The virus also damaged server farms inside of their studio, thus making them slower than usual. The trojan horse was eliminated in less than 60 days, but still caused some considerable amount of damage to server computers, thus them having to have ACS Security enabled to prevent further trojan horses like this.

The trojan also stole private information from accounts on the server, prompting the game to be shut down until the virus was eliminated. It was eventually destroyed by the new security system installed into the computers at the studio company and all gameplay mechanics were returned to normal with the horse removed from the computer without needing rebooting. This trojan horse is similar to Caltrose25V5 that followed 18 years later.