WM97/Esele-A is a macro virus that targets Word documents.
W32/Codbot-AG is a network worm with backdoor functionality for the Windows platform.
W32/Codbot-AG can spread to remote network shares protected by weak passwords and to computers vulnerable to common exploits, including the RPC-DCOM, LSASS and MSSQL vulnerabilities.
W32/Codbot-AG can be controlled by a remote attacker via the IRC network. The attacker can issue commands to download and run further malicious code, steal passwords and system information and sniff packets from the local network.