Backdoor.IRC.Jemput Trojan
When Backdoor.IRC.Jemput is executed, it does the following:
Creates the following files, some of which are not malicious, but should be able to be detected by a good free spyware scanner:antivirus cleaner.ico
cakap.cnf
channel.cnf
danautoba.cnf
hide.ico
http.cnf
icon.pif
jempu.ini
jemput.pif
mira.pif
mirc.exe
mirc.ini
mirc.sys
norton.pif
remote.ini
symantecsys.pif
systemdll.pif
FONTS\ident.txt
FONTS\Nick.txt
FONTS\tambah.txt
FONTS\username.txt
in the C:\Windows\Leukosit folder, which the Trojan creates if it does not exist.
Executes C:\Windows\Leukosit\Mirc.exe, which will connect to a remote server to await further instruction from the Trojan's author.
When Backdoor.IRC.Jemput runs, there will be two icons visible in the system tray:
- ku2 -X- Virus Checker
- ku2 -X- Virus Scanner Cleaner V3.4
Users and administrators should adhere to the following basic security "best practices":
Turn off and remove unneeded services. By default, many operating systems install auxiliary services that are not critical, such as an FTP server, telnet, and a Web server. These services are avenues of attack. If they are removed, blended threats have less avenues of attack and you have fewer services to maintain through patch or free spyware scanner updates.If a blended threat exploits one or more network services, disable, or block access to, those services until a patch is applied.
Always keep your patch levels up-to-date, especially on computers that host public services and are accessible through the firewall, such as HTTP, FTP, mail, and DNS services.
Enforce a password policy. Complex passwords make it difficult to crack password files on compromised computers. This helps to prevent or limit damage when a computer is compromised.
Configure your email server to block or remove email that contains file attachments that are commonly used to spread viruses, such as .vbs, .bat, .exe, .pif and .scr files.
Isolate infected computers quickly to prevent further compromising your organization. Perform a forensic analysis and restore the computers using trusted media.
Train employees not to open attachments unless they are expecting them. Also, do not execute software that is downloaded from the Internet unless it has been scanned for viruses and spyware. Simply visiting a compromised Web site can cause infection if certain browser vulnerabilities are not patched.
You will find much more on this topic at WorldsLargestNetwork.com
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