Welcome to the Virus Encyclopedia of Panda Security.
|Effects: ||It exploits the Internet Zone and MHTML vulnerabilities to download itself from an infected website. It deletes system files and disables the Windows Registry Editor|
|Detection updated on:||Dec. 26, 2003|
|Country of origin:||PERU|
Daol.A is a virus that exploits the Internet Zone and MHTML vulnerabilities. When the user access an infected website, the virus exploits these vulnerabilities to download to the computer and run itself.
Daol.A infects all the files with an EXE, SCR, ASP, PLG, HTM, HTML, VBS or VBE extension. If the infected file has an ASP, PLG, HTM, HTML, VBS or VBE extension, the virus encrypts the original contents of the file. The user will then be able to edit the infected file and add new code, but not to modify the original contents.
Daol.A is easy to recognize, as it displays the following messages on screen on the 26 of every month: