Resolve for W32/Apribot-C description
A tool that removes W32/Apribot-C
Resolve is the name for a set of small, downloadable Sophos utilities designed to remove and undo the changes made by certain viruses, Trojans and worms.
They terminate any virus processes and reset any registry keys that the virus changed. Existing infections can be cleaned up quickly and easily, both on individual workstations and over networks with large numbers of computers.
W32/Apribot-C is an IRC backdoor with spreading capability.
Each time the worm is run it tries to connect to a remote IRC server and join a specific channel. The backdoor component then runs in the background as a server process, listening for commands to execute. The infected computer can be used to perform several functions: W32/Apribot-C is an IRC backdoor with spreading capability.
Each time the worm is run it tries to connect to a remote IRC server and join a specific channel. The backdoor component then runs in the background as a server process, listening for commands to execute. The infected computer can be used to perform any of the following functions:
Proxy server (SOCKS4)
File system Manipulation
DDoS floods (TCP,UDP,SYN)
Remote shell (RLOGIN)
When first run the worm copies itself to the Windows System folder under a randomly generated name. The copy may have some random data appended to it. In order for the copy to be run on startup, registry entries are created under random names in the following locations:
The worm chooses from one or two of the following strings to form the filename:
The following entry is also created:
Shell = “Explorer.exe,[filename] -shell”
Many additional registry entries may be created, changed or deleted. In particular, many entries are created in the following registry locations:
The following entries are set:
HKLMSYSTEMControlSet001ControlLsarestrictanonymous = 1
HKLMSYSTEMCurrentControlSetControlLsarestrictanonymous = 1
W32/Apribot-C may also attempt to disable debugging and firewall software.
The worm appends several lines to the HOSTS file, found in the driversetc subfolder of the Windows System folder. Each line consists of a randomly chosen IP address beginning with “127” and a web address. The worm appends this data in order to prevent access to a number of anti-virus and Microsoft web sites.
W32/Apribot-C can be removed from Windows computers automatically with the following Resolve tools:
APRIBGUI is a disinfector for standalone Windows computers. To use it you have to do the following:
· Open APRIBGUI.com file from your desktop after downloading it.
· Click on the Start Scan Button.
· Wait for the process to complete.
Command line disinfector
APRIBSFX.EXE is a self-extracting archive containing APRIBCLI, a Resolve command line disinfector for use on Windows networks.
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