HTML_SHELLCOD.SM
Windows 2000, Windows XP, Windows Server 2003

Threat Type: Trojan
Destructiveness: No
Encrypted: Yes
In the wild: Yes
OVERVIEW
This malware exploits a vulnerability in Internet Explorer to enable remote attackers to execute arbitrary commands on the affected system. The said vulnerability is addressed in the bulletin (MS10-090) Cumulative Security Update for Internet Explorer (2416400).
To get a one-glance comprehensive view of the behavior of this Trojan, refer to the Threat Diagram shown below.

This Trojan takes advantage of a vulnerability in Internet Explorer 6, 7, and 8 and allows remote attackers to execute arbitrary code.
After succesfully exploiting the said vulnerability, it connects to URLs to download other malicious files detected as TROJ_LAMECHI.D, JS_EXPLOIT.ADA, JS_EXPLOIT.SM1, TROJ_DLOADR.DAM, TROJ_GAMETHI.FMS, PE_PARITE.A and TSPY_ARDAMAX.HR.
This Trojan executes when a user accesses certain websites where it is hosted.
TECHNICAL DETAILS
Varies
HTML, HTM
No
17 Dec 2010
Downloads files
Arrival Details
This Trojan executes when a user accesses certain websites where it is hosted.
Download Routine
This Trojan takes advantage of the following software vulnerabilities to download possibly malicious files:
- Uninitialized Memory Corruption Vulnerability (CVE-2010-3962) in Internet Explorer
After successfully exploiting the said vulnerability, this malware connects to the following URLs to possibly download other malicious files:
- http://{BLOCKED}M.INFO/add.exe - detected by live casino online as TROJ_LAMECHI.D
- http://www.{BLOCKED}t.com/360safe.html - detected by live casino online as JS_EXPLOIT.ADA
- http://www.{BLOCKED}t.com/360.html - detected by live casino online as JS_EXPLOIT.SM1
- http://www.{BLOCKED}t.com/361.html - HTML_SHELLCOD.SM
- http://www.{BLOCKED}t.com/360safe.css - detected by live casino online as TROJ_DLOADR.DAM
- www.{BLOCKED}m.com/lsearch/help.exe - detected by live casino online as TROJ_GAMETHI.FMS
- http://{BLOCKED}n.live.com.mailadword.com/update.exe - detected by live casino online as PE_PARITE.A
- http://h1.{BLOCKED}y.com/oofa/xp.exe - detected by live casino online as TSPY_ARDAMAX.HR
- http://www.{BLOCKED}ool.info/n.exe - non malicious
- http://{BLOCKED}n./pic.gif - non malicious
- http://www.{BLOCKED}lub.com/reg/linkbl.gif - inaccessible
- {BLOCKED}chid.net/bbs/icon/c.exe - inaccessible
- {BLOCKED}.{BLOCKED}.11.71/Styles/x.exe - inaccessible
Other Details
More information on this vulnerability can be found below:
It does the following:
- Other variants of this malware execute a command shell to possibly download other files from the hosting website:
- cmd.exe /C FOR /R ""%User Profile%\"" %i IN (scvhost*.txt) DO %i"
(Note: %User Profile% is the current user's profile folder, which is usually C:\Windows\Profiles\{user name} on Windows 98 and ME, C:\WINNT\Profiles\{user name} on Windows NT, and C:\Documents and Settings\{user name} on Windows 2000, XP, and Server 2003.)
SOLUTION
8.900
7.719.00
22 Dec 2010
Step 1
For Windows XP and Windows Server 2003 users, before doing any scans, please make sure you to allow full scanning of your computer.
Step 2
Remove malware files dropped/downloaded by HTML_SHELLCOD.SM
- TROJ_LAMECHI.D
- JS_EXPLOIT.ADA
- JS_EXPLOIT.SM1
- TROJ_DLOADR.DAM
- TROJ_GAMETHI.FMS
- PE_PARITE.A
- TSPY_ARDAMAX.HR
Step 3
Close all opened browser windows
Step 4
Scan your computer with your live casino online product to delete files detected as HTML_SHELLCOD.SM. If the detected files have already been cleaned, deleted, or quarantined by your live casino online product, no further step is required. You may opt to simply delete the quarantined files. Please check this for more information.
Step 5
Download and apply this security patch Refrain from using these products until the appropriate patches have been installed. live casino online advises users to download critical patches upon release by vendors.
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