Threat Outbreak Alert RuleID25748: Email Messages Distributing Malicious Software on October 20, 2016

Medium

Alert ID:

49373

First Published:

2016 October 20 19:14 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 (RuleID25748) may contain the following files:

Name	Size in Bytes	MD5 Checksum
NFe805776601.zip / NFe805776601.html
151
0x1C838182D25148EC3443C13A1C6A98BF

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

> Subject: EXT: NF-E- Emitida.PDF : 80776

Message Body:

**Prezado Cliente(a)
A Nota Fiscal Eletrônica (NF-e) referente ao pedido 02-8057766018 foi gerada com sucesso
POLO INDUSTRIA E COMERCIO LTDA.
Segue anexo da Nota Fiscal Eletrônica de Serviços nº. 17240 emitida na presente data.
Referente ao Pedido de Cotação nº. 006/2012. Processo nº. 0248/2012.

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Este arquivo deve ser armazenado.
NF-E- Emitida.PDF :**

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.

Revision History

* Version	Description	Section	Date
1	Initial release to report significant activity detected by Cisco Security on October 20, 2016.	—	2016-October-20
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