Threat Outbreak Alert

Threat Outbreak Alert: Fake Payment Invoice E-mail Messages on March 30, 2013

 
Threat Type:IntelliShield: Threat Outbreak Alert
IntelliShield ID:28755
Version:2
First Published:2013 March 30 02:10 GMT
Last Published:2013 April 01 13:43 GMT
Port: Not available
Urgency:Possible use
Credibility:Confirmed
Severity:Mild Damage
 
Version Summary:Cisco Security Intelligence Operations has detected significant activity on March 30, 2013.
 

Description
 
Cisco Security Intelligence Operations has detected significant activity related to spam e-mail messages that claim to deliver information regarding invoices for financial transactions. The e-mail messages instruct the user to open an attached file. However, when the user opens the file, the malicious executable attempts to install malicious software on the user's system.

E-mail messages that are related to this threat (RuleID5664) may contain the following files:

ADPinv_#0_03_29_2013.exe
AAAaaa_#00000000000_00_00_0000.zip
ADPinv_#0{DIGIT[10]}_03_29_2013.exe

The ADPinv_#0_03_29_2013.exe file has a file size of 101,888 bytes. The MD5 checksum, which is a unique identifier of the executable, is the following string: 0xA7715B33A05DF9DF596C5779119D48EB

The ADPinv_#0{DIGIT[10]}_03_29_2013.exe file in the AAAaaa_#00000000000_00_00_0000.zip attachment has a file size of 101,888 bytes. The MD5 checksum is the following string: 0xA7715B33A05DF9DF596C5779119D48EB

The following text is a sample of the e-mail message that is associated with this threat outbreak:

Subject: FW: ADP Payroll Invoice for week ending 03/29/2013

Message Body:

Your ADP Payroll invoice for last week is attached for your review. If you =ave any questions regarding this invoice, please contact your ADP service =eam at the number provided on the invoice for assistance.

Thank you for choosing ADP Payroll.

Important: Please do not respond to this message. It comes from an unattend=d mailbox.

Cisco Security Intelligence Operations analysts examine real-world e-mail traffic data that is collected from over 100,000 contributing organizations worldwide. This data helps provide a range of information about and analysis of global e-mail security threats and trends. Cisco will continue to monitor this threat and automatically adapt systems to protect customers. This report will be updated if there are significant changes or if the risk to end users increases.

Cisco security appliances protect customers during the critical period between the first exploit of a virus outbreak and the release of vendor antivirus signatures. E-mail that is managed by Cisco and end users who are protected by Cisco Web Security Appliances will not be impacted by these attacks. Cisco security appliances are automatically updated to prevent both spam e-mail and hostile web URLs from being passed to the end user.

Related Links
Cisco Security Intelligence Operations
Cisco Threat Operations Center
Cisco SenderBase Security Network
 
Alert History
 
Version 1, March 30, 2013, 2:10 AM: Cisco Security Intelligence Operations has detected significant activity on March 29, 2013.


Product Sets
 
The security vulnerability applies to the following combinations of products.

Primary Products:
IntelliShieldThreat Outbreak Alert Original Release Base

Associated Products:
N/A




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