McAfee DAT files contain detection and repair information for threats. The Minimum DAT field specifies the lowest/oldest DAT version that is capable of detecting the first incarnation of a threat, and the release date. The highest/newest DAT version should always be used for the most complete protection and are available on the Anti-Virus Updates page.
Each description displays the minimum, fully tested, DAT version that includes regular detection for a particular threat. These fully tested DATs are released on a daily basis. If necessary, they are also released when a Medium, Medium On Watch, or High risk threat is discovered. An EXTRA.DAT will also be posted for these more prevalent threats, if necessary.
For each description listed, detection is always available. In the event that the DAT version specified is not yet available, an EXTRA.DAT file may be downloaded via the McAfee AVERT Extra.dat Request Page. Alternatively, minimally tested HOURLY BETA DAT files are available for downloading.
Overview
This is a trojan detection. Unlike viruses, trojans do not self-replicate. They are spread manually, often under the premise that they are beneficial or wanted. The most common installation methods involve system or security exploitation, and unsuspecting users manually executing unknown programs. Distribution channels include email, malicious or hacked web pages, Internet Relay Chat (IRC), peer-to-peer networks, etc.
Characteristics
This trojan is a remote access trojan. There are several variants of this trojan, and the specific actions taken are decided by the hacker who uses this trojan. The description is a general guide. Newer variant requires the latest DATs for detection.
Upon execution, the trojan drops itself to the following paths.
- %WINDIR%\system32\nvsvcd.exe
- %WINDIR%\system\smss.exe
- C:\documents and settings\%USER%\local settings\temp\smssb.exe
- C:\documents and settings\%USER%\local settings\temp\smss.exe
It creates the run registry keys to load itself at system startup.
- HKEY_LOCAL_MACHINE\software\microsoft\windows\currentversion\run \.nvsvc="%WINDIR%\system\smss.exe /w"
- HKEY_LOCAL_MACHINE\software\microsoft\windows\currentversion\run \.nvsvcb="C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp\smssb.exe /u"
The trojan adds the following registry entries.
- HKEY_CURRENT_USER\software\microsoft\windows\currentversion \internet settings\zonemap\\proxybypass="1"
- HKEY_CURRENT_USER\software\microsoft\windows\currentversion \internet settings\zonemap\\intranetname="1"
- HKEY_CURRENT_USER\software\microsoft\windows\currentversion \internet settings\zonemap\\uncasintranet="1"
- HKEY_LOCAL_MACHINE\system\currentcontrolset\services\windows log \security\security="(binary registry data)
- HKEY_LOCAL_MACHINE\system\currentcontrolset\services\windows log \errorcontrol="1"
- HKEY_LOCAL_MACHINE\system\currentcontrolset\services\windows log \objectname="LocalSystem"
- HKEY_LOCAL_MACHINE\system\currentcontrolset\services\windows log \security
- HKEY_LOCAL_MACHINE\system\currentcontrolset\services\windows log \type="16"
- HKEY_LOCAL_MACHINE\system\currentcontrolset\services\windows log \start="2"
- HKEY_LOCAL_MACHINE\system\currentcontrolset\services\windows log \imagepath="%WINDIR%\system32\nvsvcd.exe"
- HKEY_LOCAL_MACHINE\system\currentcontrolset\services\windows log \displayname="Windows Log"
The trojan attempts to terminate the following security services.
- KAVPersonal50
- kavsvc
- navapsvc
- Outpost
- SAVScan
- Symantec Core LC
- WindowsFirewall
- winroute.exe
- wrctrl.exe
- wscsvc
- wuauserv
- ZoneAlarm
The backdoor opens a random tcp port and waits commands. It also connects IRC channel to the following remote servers.
- mdboc.com
- mdlod.com
- ledamog.com
The trojan is able to relay spam messages to mail servers at the following domains.
- aol.com
- gmail.com
- hotmail.com
- netscape.com
- yahoo.com
The trojan attempts to update itself if a new version is available at rizalof.com.
Symptoms
- Unexpected IRC/SMTP connections
- Unexpected port open
- Presence of the mentioned registry keys
- Presence of the mentioned files
- Termination of the mentioned services
Method of Infection
Trojans do not self-replicate. They are spread manually, often under the premise that the executable is something beneficial. Distribution channels include IRC, peer-to-peer networks, newsgroup postings, email, etc.
All Information
Overview -
This is a trojan detection. Unlike viruses, trojans do not self-replicate. They are spread manually, often under the premise that they are beneficial or wanted. The most common installation methods involve system or security exploitation, and unsuspecting users manually executing unknown programs. Distribution channels include email, malicious or hacked web pages, Internet Relay Chat (IRC), peer-to-peer networks, etc.
Characteristics
Characteristics -
This trojan is a remote access trojan. There are several variants of this trojan, and the specific actions taken are decided by the hacker who uses this trojan. The description is a general guide. Newer variant requires the latest DATs for detection.
Upon execution, the trojan drops itself to the following paths.
- %WINDIR%\system32\nvsvcd.exe
- %WINDIR%\system\smss.exe
- C:\documents and settings\%USER%\local settings\temp\smssb.exe
- C:\documents and settings\%USER%\local settings\temp\smss.exe
It creates the run registry keys to load itself at system startup.
- HKEY_LOCAL_MACHINE\software\microsoft\windows\currentversion\run \.nvsvc="%WINDIR%\system\smss.exe /w"
- HKEY_LOCAL_MACHINE\software\microsoft\windows\currentversion\run \.nvsvcb="C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp\smssb.exe /u"
The trojan adds the following registry entries.
- HKEY_CURRENT_USER\software\microsoft\windows\currentversion \internet settings\zonemap\\proxybypass="1"
- HKEY_CURRENT_USER\software\microsoft\windows\currentversion \internet settings\zonemap\\intranetname="1"
- HKEY_CURRENT_USER\software\microsoft\windows\currentversion \internet settings\zonemap\\uncasintranet="1"
- HKEY_LOCAL_MACHINE\system\currentcontrolset\services\windows log \security\security="(binary registry data)
- HKEY_LOCAL_MACHINE\system\currentcontrolset\services\windows log \errorcontrol="1"
- HKEY_LOCAL_MACHINE\system\currentcontrolset\services\windows log \objectname="LocalSystem"
- HKEY_LOCAL_MACHINE\system\currentcontrolset\services\windows log \security
- HKEY_LOCAL_MACHINE\system\currentcontrolset\services\windows log \type="16"
- HKEY_LOCAL_MACHINE\system\currentcontrolset\services\windows log \start="2"
- HKEY_LOCAL_MACHINE\system\currentcontrolset\services\windows log \imagepath="%WINDIR%\system32\nvsvcd.exe"
- HKEY_LOCAL_MACHINE\system\currentcontrolset\services\windows log \displayname="Windows Log"
The trojan attempts to terminate the following security services.
- KAVPersonal50
- kavsvc
- navapsvc
- Outpost
- SAVScan
- Symantec Core LC
- WindowsFirewall
- winroute.exe
- wrctrl.exe
- wscsvc
- wuauserv
- ZoneAlarm
The backdoor opens a random tcp port and waits commands. It also connects IRC channel to the following remote servers.
- mdboc.com
- mdlod.com
- ledamog.com
The trojan is able to relay spam messages to mail servers at the following domains.
- aol.com
- gmail.com
- hotmail.com
- netscape.com
- yahoo.com
The trojan attempts to update itself if a new version is available at rizalof.com.
Symptoms
Symptoms -
- Unexpected IRC/SMTP connections
- Unexpected port open
- Presence of the mentioned registry keys
- Presence of the mentioned files
- Termination of the mentioned services
Method of Infection
Method of Infection -
Trojans do not self-replicate. They are spread manually, often under the premise that the executable is something beneficial. Distribution channels include IRC, peer-to-peer networks, newsgroup postings, email, etc.
Removal -
Removal -
All Users:
Use current engine and DAT files for detection and removal.
Modifications made to the system Registry and/or INI files for the purposes of hooking system startup, will be successfully removed if cleaning with the recommended engine and DAT combination (or higher).
Additional Windows ME/XP removal considerations
Variants
Variants -
