Threat Outbreak Alert RuleID23679: Email Messages Distributing Malicious Software on June 30, 2016

Medium

Alert ID:

46952

First Published:

2016 July 1 12:11 GMT

Version:

1

Summary

• Cisco Security has detected significant activity related to spam email messages distributing malicious software.

Email messages that are related to this threat (RuleID23679) may contain the following files:

Name	Size in Bytes	MD5 Checksum
NF-e-638561812963357.zip / NF-e-638561812963357.exe	28,672	0xB3F0207F416B68CE6BE465E037EC0A4F

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

> Subject: Nota fiscal eletrônica 29/06/2016 12:36:11

Message Body:

Prezado(a)-Senhor(a)
Este arquivo deve ser armazenado.
Esta mensagem refere-se à Nota Fiscal-NF-e
01-1090325381040889 Da Prestador De Serviços:
Coimbra prestadora de serviços LTDA
Segue em anexo, conforme solicitado.
Data de emissão:17/06/2016

Cisco security appliances can help protect customers during the critical period between the first exploit of a virus outbreak and the release of vendor antivirus signatures. Cisco Web Security Appliances help secure and control web and email traffic by offering layers of malware protection. Cisco security appliances are automatically updated to help prevent both spam email and hostile web URLs from being passed to the end user.

Related Links
Cisco Security
Cisco SenderBase Security Network

Revision History

* Version	Description	Section	Date
1	Initial Release		2016-July-01 12:11 GMT
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