W32/Vanebot-H is a worm and IRC backdoor for the Windows platform.
W32/Vanebot-H spreads to other network computers by exploiting common buffer overflow vulnerabilities, including: SRVSVC (MS06-040), Psyme, PNP (MS05-039) and ASN.1 (MS04-007) and by copying itself to network shares and MSSQL servers protected by weak passwords.
W32/Vanebot-H runs continuously in the background, providing a backdoor server which allows a remote intruder to gain access and control over the computer via IRC channels.
W32/Vanebot-H includes functionality to:
set up an FTP server
set up a proxy server
spread via instant messenger clients, such as AOL, Yahoo, ICQ and MSN by sending messages automatically
set or remove network shares
disable certain security software
start a remote shell (RLOGIN)
download/execute arbitrary files
log keypresses
port scanning
packet sniffing
access the internet and communicate with a remote server via HTTP
harvest information from clipboard
take part in Distributed Denial of Service (DDoS) attacks
This application is most likely downloaded and installed by another application that is considered to be adware or spyware.