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Security Best Practice: Familiarize Yourself with the SMB Remote Disk Scanning for Executable Files Protection

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Check Point Reference: SBP-2010-20
Date Published:
Severity:
Source: IPS Research Center
Protection Provided by: Security Gateway
  • R71
  • R70
VPN-1
  • NGX R65
VSX
  • NGX R65
Who is Vulnerable?
Microsoft Windows users
Vulnerability Description
A Trojan horse is a program that installs malicious software while under the guise of doing something else.  Trojans are known for installing backdoor programs which allow unauthorized non permissible remote access to the victim's machine by unwanted parties with malicious intentions.

Some Trojans, such as Virus: Win32.Pate.A, send SMB requests for list of executable files on SMB shared disk in order to infect the files consequently.
Vulnerability Details
The SMB Remote Disk Scanning for Executable Files protection is able to detect the difference between legitimate and malicious SMB search requests for executable files.

Protection Overview
This protection will detect and block aggressive attempts to retrieve the list of executable files on remote SMB drives.

In order for the protection to be activated, update your Security Gateway/VPN-1 product to the latest IPS/SmartDefense update. For information on how to update IPS/SmartDefense, go to SBP-2006-05, Protection tab and select the version of your choice.

To configure the defense, select your product from the list below and follow the related protection steps.

Security Gateway: R70/R71

How Can I Protect My Network?
1. In the IPS tab, click Protections > By Protocol > Application Intelligence > Malware Traffic.
2. In the right pane, double-click the following protection:

SMB Remote Disk Scanning for Executable Files

3. In the Protection Details window, click on Edit. Choose the protection's Action (Override IPS Policy with: Prevent/Detect), and apply Additional Settings.
4. Install policy on all modules.

How Do I Know if My Network is Under Attack?
SmartView Tracker will log the following entries:

Attack Name: Malware Traffic
Attack Information: SMB remote disk scanning for executable files

VPN-1 NGX R65 & VPN-1 VSX NGX R65

How Can I Protect My Network?
1. In the SmartDefense tab, click Application Intelligence > Malware Traffic > SMB Remote Disk Scanning for Executable Files.
2. In the configuration pane, under Settings > Mode, check Active.
3. Install policy on all modules.

How Do I Know if My Network is Under Attack?
SmartView Tracker will log the following entries:

Attack Name: Malware Traffic
Attack Information: SMB remote disk scanning for executable files