ThreatExpert Report: Backdoor.Agent!sd6, Backdoor.Win32.Agent.gjs, Backdoor.Trojan, Generic..

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Submission Summary:

Submission details:

Submission received: 14 February 2009, 10:04:11
Processing time: 6 min 57 sec
Submitted sample:

File MD5: 0x1416CA4E8233613664ABD4766305F348
File SHA-1: 0xD50378EB4BDAE29EC7D53244DCB6FD79636FD786
Filesize: 46,592 bytes
Alias:

Backdoor.Agent!sd6 [PCTools]
Backdoor.Trojan [Symantec]
Backdoor.Win32.Agent.gjs [Kaspersky Lab]
Generic BackDoor [McAfee]
BKDR_AGENT.AJAT [Trend Micro]
Mal/Behav-024, Mal/Emogen-Y [Sophos]
Virus.Win32.Crypt.CIR [Ikarus]

Summary of the findings:

What's been found	Severity Level
Creates a startup registry entry.
Contains characteristics of an identified security risk.

Technical Details:

Possible Security Risk

Attention! Characteristics of the following security risk was identified in the system:

Security Risk	Description
Backdoor.Agent!sd6	Backdoor.Agent!sd6 is a malicious application that runs in the background and allows remote access to your system, giving the attacker full control of your system.

Attention! The following threat category was identified:

Threat Category	Description
	A malicious backdoor trojan that runs in the background and allows remote access to the compromised system

File System Modifications

The following file was created in the system:

#	Filename(s)	File Size	File Hash	Alias
1	%UserProfile%\xrt_nueq.exe [file and pathname of the sample #1]	46,592 bytes	MD5: 0x1416CA4E8233613664ABD4766305F348 SHA-1: 0xD50378EB4BDAE29EC7D53244DCB6FD79636FD786	Backdoor.Agent!sd6 [PCTools] Backdoor.Trojan [Symantec] Backdoor.Win32.Agent.gjs [Kaspersky Lab] Generic BackDoor [McAfee] BKDR_AGENT.AJAT [Trend Micro] Mal/Behav-024, Mal/Emogen-Y [Sophos] Virus.Win32.Crypt.CIR [Ikarus]

Note:

%UserProfile% is a variable that specifies the current user's profile folder. By default, this is C:\Documents and Settings\[UserName] (Windows NT/2000/XP).

Registry Modifications

The newly created Registry Values are:

[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion]

xrt_id = "2703770500"
xrt_options = 4E 45 57 4F 50 54 53 00 31 01 72 65 70 5F 73 69 7A DB 87 AC 04 77 F8 62 A4 0C 40 30 70 7A 6F 57 74 0D 7B F9 5C 0B 76 7D 62 3E 63 72 1C 70 74 1C 20 1B 33 79 80 79 61 2E FE 75 E0 CD 0E E0 E9 F2 E8 07 CF EE 51 E5 F0 FF E5 FC C3 60 02 00
xrt_opt_server1 = "202.71.106.206"
xrt_opt_reserv = "pull.assisback.com"
xrt_opt_forms = "/cgi-bin/forms.cgi"
xrt_opt_certs = "/cgi-bin/cert.cgi"
xrt_opt_options = "/cgi-bin/options.cgi"
xrt_opt_ss = "/cgi-bin/ss.cgi"
xrt_opt_pstorage = "/cgi-bin/pstore.cgi"
xrt_opt_command = "/cgi-bin/cmd.cgi"
xrt_opt_file = "/cgi-bin/file.cgi"
xrt_opt_idproject = "0004"
xrt_opt_pauseopt = "800"
xrt_opt_pausecert = "200"
xrt_opt_deletecookie = "yes"
xrt_opt_deletesol = "no"
xrt_newversion = 0x00000000

[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run]

xrt_Shell = "%UserProfile%\xrt_nueq.exe"

so that xrt_nueq.exe runs every time Windows starts

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