Skip to main content
Skip to main content
Microsoft Security Intelligence
251 entries found. Displaying page 4 of 13.
Updated on Oct 19, 2005
Backdoor:Win32/Sdbot.OI is a backdoor trojan that connects to an IRC server from an infected computer to allow unauthorized access to the computer. Attackers can send commands that include spreading the trojan to network shares using weak passwords and to other computers by exploiting certain Windows buffer-overrun vulnerabilities.
Alert level: severe
Updated on Oct 19, 2005
Backdoor:Win32/Sdbot.OM is a backdoor Trojan that targets computers running certain versions of Microsoft Windows. The Trojan connects to an IRC server from an infected computer to allow unauthorized access to the computer. Attackers can then send commands that include spreading the Trojan to network shares by trying weak passwords and to other computers by exploiting certain Windows buffer overrun vulnerabilities.
Alert level: severe
Updated on Dec 08, 2006
Alert level: severe
Updated on Dec 08, 2006
Alert level: severe
Updated on Dec 08, 2006
Alert level: severe
Updated on Dec 08, 2006
Alert level: severe
Updated on May 19, 2007
Alert level: severe
Updated on May 19, 2007
Alert level: severe
Updated on May 22, 2007
Alert level: severe
Updated on May 22, 2007
Alert level: severe
Updated on May 22, 2007
Alert level: severe
Updated on May 22, 2007
Alert level: severe
Updated on May 22, 2007
Alert level: severe
Updated on May 22, 2007
Alert level: severe
Updated on May 22, 2007
Alert level: severe
Updated on May 23, 2007
Alert level: severe
Updated on Aug 28, 2007
Backdoor:Win32/Sdbot.ZC is a backdoor Trojan that allows an attacker to take control of an infected computer. When a computer is infected, the Trojan connects to an Internet Relay Chat (IRC) server and joins a channel in order to receive commands from the controlling attacker. These commands can instruct the Trojan to perform a number of different actions, including downloading and installing additional components and spreading to other computers via MSN Messenger.
Alert level: severe
Updated on Sep 01, 2007
Alert level: severe
Updated on Sep 01, 2007
Alert level: severe
Updated on Sep 12, 2007
Worm:Win32/Neeris.A is a chat client worm with backdoor Trojan functionality. The worm uses API calls for both Windows Messenger and AOL Messenger to send messages to contacts, with an attached file containing a copy of the worm. Worm:Win32/Neeris.A connects to an IRC server and waits to receive commands, such as to self-update, remove itself, download various programs and malware, or terminate running processes.
Alert level: severe