Threat Outbreak Alert RuleID21521: Email Messages Distributing Malicious Software on March 5, 2016

Medium

Alert ID:

43880

First Published:

2016 March 7 14:46 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 (RuleID21521) may contain the following files:

Name	Size in Bytes	MD5 Checksum
Anexo_Fiscal_02032016.zip / Anexo_Fiscal_02032016.jar	Not Available	0x531AFF686233C82F0AFC2893C67EF00B

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

> Subject: Nota Fiscal Recebida. 7dc7aaa99450b66675c99000016c540c

Message Body:

Secretaria Municipal de Finanças
A FRASE DE SEGURANÇA escolhida por você para
garantir a autenticidade deste e-mail foi:
EVENTO: Emissão de NFS-e
Esta mensagem refere-se à Nota Fiscal Eletrônica
de Serviços Nº.: 7566828073, do prestador de serviços:

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-March-07 14:46 GMT
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