- Jul 16, 2001
- 17,967
- 140
- 106
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Chain reaction
The first line of attack is a Trojan program called "Glieder" that arrives in an email and activates when a user double-clicks on the attachment - triggering a chain reaction designed to take the computer hostage.
Several new variants of Glieder were released in rapid succession on Friday in an effort to reach as many machines as possible, anti-virus companies say.
Once installed, Glieder tries to download two more programs from a long list of web addresses. This makes the computer more vulnerable to attack from the two follow-on Trojan programs.
The second Trojan, known as Fantibag, deactivates anti-virus and other security software and blocks access to security-related websites, opening up the computer to infection. The final bug, "Mitglieder", completes the attack by installing a program that can be used to control the machine remotely.
Chain reaction
The first line of attack is a Trojan program called "Glieder" that arrives in an email and activates when a user double-clicks on the attachment - triggering a chain reaction designed to take the computer hostage.
Several new variants of Glieder were released in rapid succession on Friday in an effort to reach as many machines as possible, anti-virus companies say.
Once installed, Glieder tries to download two more programs from a long list of web addresses. This makes the computer more vulnerable to attack from the two follow-on Trojan programs.
The second Trojan, known as Fantibag, deactivates anti-virus and other security software and blocks access to security-related websites, opening up the computer to infection. The final bug, "Mitglieder", completes the attack by installing a program that can be used to control the machine remotely.