Threat Outbreak Alert RuleID23088: Email Messages Distributing Malicious Software on May 26, 2016

Medium

Alert ID:

46401

First Published:

2016 May 26 16:22 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 (RuleID23088) may contain the following files:

Name	Size in Bytes	MD5 Checksum
NF-e_Nota_fiscal_N128381283.rar / NF-e_Nota_fiscal_N128381283.vbs
13,412
0x8E838ACA842DF571B23B6ED0AAA0DCCD

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

> Subject: (@TRYU) Envio de Nota físcal Eletrônica (NF-e) - - 4977975431

Message Body:

(UTRUEW) Segue em Anexo abaixo a NF-e referente ao Pedido N 981729831 Informações sobre sua NF-e: EM ANEXO Série:2 Numro:000162323 Chave de Acesso:99128371827478889899989001020412647817931128374479812431824356 Ref.8874001821ECBDBCCA0970998754354311EDCAA

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-May-26 16:22 GMT
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