Threat Outbreak Alert: Fake Payment Confirmation Notice Email Messages on April 10, 2014
IntelliShield: Threat Outbreak Alert
2014 April 10 18:30 GMT
2014 April 10 18:30 GMT
Cisco Security Intelligence Operations has detected significant activity on April 10, 2014.
Cisco Security Intelligence Operations has detected significant activity related to spam email messages that claim to contain a payment confirmation notice for the recipient. The text in the email message attempts to convince the recipient to open the attachment to view the receipt. However, the .zip attachment contains a malicious .exe file that, when executed, attempts to infect the system with malicious code.
Email messages that are related to this threat (RuleID9581) may contain the following files:
The pdf.exe file in the confirmation.zip attachment has a file size of 1,151,644 bytes. The MD5 checksum, which is a unique identifier of the executable, is the following string: 0x04E4F68EB9E1FAD23816F73FB5BD864C
The following text is a sample of the email message that is associated with this threat outbreak:
Subject: Proof of payment
RELEASED from Quarantine: See notice at bottom.
Please find attached receipt of payment transferred.
NOTICE: This message was recently released from the Key Bank quarantine. All inbound executable files (.vbs, .exe, .pif, .bat, etc.) are temporarily quarantined until they can be manually scanned for viruses. As a result of this security requirement, delivery of this message may have been delayed.
Cisco Security Intelligence Operations analysts examine real-world email 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 email 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. Email 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 email and hostile web URLs from being passed to the end user.
The security vulnerability applies to the following combinations of products.
Threat Outbreak Alert
Original Release Base
Alerts and bulletins on the Cisco Security Intelligence Operations Portal are highlighted by analysts in the
Cisco Threat Operations Center and represent a subset of the comprehensive content that is available through Cisco Security IntelliShield Alert Manager Service.
This customizable threat and vulnerability alert service provides security staff with access to timely, accurate, and credible information about threats and vulnerabilities that may affect their environment.
The urgency and severity ratings of this alert are not tailored to individual users; users may value alerts differently based upon their network configurations and circumstances. THE ALERT, AND INFORMATION CONTAINED THEREIN, ARE PROVIDED ON AN "AS IS" BASIS AND DO NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE ALERT, AND INFORMATION CONTAINED THEREIN, OR MATERIALS LINKED FROM THE ALERT, IS AT YOUR OWN RISK. INFORMATION IN THIS ALERT AND ANY RELATED COMMUNICATIONS IS BASED ON OUR KNOWLEDGE AT THE TIME OF PUBLICATION AND IS SUBJECT TO CHANGE WITHOUT NOTICE. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE ALERTS AT ANY TIME.