Welcome to the Virus Encyclopedia of Panda Security.
|Common name:||Stealth boot|
|Technical name:||Stealth boot|
It carries out damaging actions on the affected computer.
It does not spread automatically using its own means.
|Detection updated on:||July 10, 2008|
|Country of origin:||SPAIN|
Stealth boot is a virus that spreads to other computers by copying its code to other files or programs.
Stealth boot uses the following propagation or distribution methods:
- Exploiting vulnerabilities with the intervention of the user: exploiting vulnerabilities in file formats or applications. To exploit them successfully it needs the intervention of the user: opening files, viewing malicious web pages, reading emails, etc.
- File infection: it infects different types of files, which are then distributed through any of the usual means: floppy disks, email messages with attachments, Internet download, files transferred via FTP, IRC channels, P2P file sharing networks, etc.
Stealth boot uses the following infection strategies:
- Resident: once it has been run, the virus goes memory resident and stops functions belonging to the operating system. Therefore, every time the operating system or an application tries to access any of these functions, the virus will activate and infect new files.
- Stealth: when the virus is memory resident, it hides the modifications made to the boot sectors or files it has infected. These modifications are: changes in size, date, attributes, etc.