Threat Outbreak Alert RuleID22321: Email Messages Distributing Malicious Software on April 17, 2016

2016-04-18T13:50:10
ID CISCO-THREAT-44722
Type ciscothreats
Reporter Cisco
Modified 2016-04-18T13:50:10

Description

Medium

Alert ID:

44722

First Published:

2016 April 18 13:50 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 (RuleID22321) may contain the following files:

Name | Size in Bytes | MD5 Checksum
---|---|---
encrypted.zip / encrypted.exe | 163,980 | 0x752F01D05AA95AF0B3A2D830F6EF614E

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

> Subject: Invoice Ref. 54895

Message Body:

Respected Sir or Madam,
Due to the regular update in the system,
we kindly ask you to review the RAR file enclosed.
The archive includes an encoding key installer [UX2839KS9]
with an updated protocol [0029382JN], which must be i
nstalled in order for the system to run properly.
Please, make sure to run the installer until
April 15th, 2016 when the update will take place.
If you have any questions, don't hesitate to
contact us or your network administrator.
We truly hope on your full cooperation in
order to avoid unnecessary delays and problems with the system.
Sincerely,

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-April-18 13:50 GMT
    Show Less

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