Threat Outbreak Alert: Fake MMS Notification E-mail Messages on May 17, 2012
IntelliShield: Threat Outbreak Alert
2012 May 17 14:32 GMT
2012 May 17 14:32 GMT
Cisco Security Intelligence Operations has detected significant activity on May 17, 2012.
Cisco Security Intelligence Operations has detected significant activity related to Spanish language spam e-mail messages that claim to contain a multimedia message for the recipient. The text in the message body attempts to convince the recipient to follow a link to view the message. However, the link directs the user to a malicious .exe file, that when executed, attempts to infect the system with malicious code.
E-mail messages that are related to this threat (RuleID4163) may contain the following file: MMSEmergencia.exe
The MMSEmergencia.exe file has a file size of 120,832 bytes. The MD5 checksum, which is a unique identifier of the executable, is the following string: 0x9B1824159A93557249181D6A903F3CE4
The following text is a sample of the e-mail message that is associated with this threat outbreak:
Subject: Has Recibido un MMS de Emergencia!!!
MENSAJE MULTIMEDIA DE EMERGENCIA. Estimado Usuario: Uno de nuestros clientes se ha visto en la necesidad de enviar un mensaje multimedia de emergencia desde nuestro porta www.movistar.com hacia su direccion de email. El mensaje es gratuito y no genera cargos adicionales para el emisor ni para el destinatario. Para visualizarlo acceda al siguiente enlace. VER MENSAJE MULTIMEDIA
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 IronPort systems to protect customers. This report will be updated if there are significant changes or if the risk to end users increases.
Cisco IronPort Virus Outbreak Filters 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 IronPort web security appliances will not be impacted by these attacks. Cisco IronPort appliances are automatically updated to prevent both spam e-mail and hostile web URLs from being passed to the end user.
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