Hantaner is a prepending virus. There exist packed and non-packed variants of Hantaner. The virus infects files in Kazaa P2P (peer-to-peer) client shared folder.
Once detected, the F-Secure security product will automatically disinfect the suspect file by either deleting it or renaming it.
Hantaner writes itself in front of executable files in that folder (prepending infection). When someone downloads and runs a file from an infected computer, he/she also becomes infected with the virus.
F-Secure Anti-Virus can detect and disinfect Hantaner virus with the following updates:
Technical Details: Alexey Podrezov; 8th of September, 2003