Threat Outbreak Alert RuleID19035: Email Messages Distributing Malicious Software on October 28, 2015

Medium

Alert ID:

41777

First Published:

2015 October 28 19:13 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 (RuleID19035) may contain the following files:

Name	Size in Bytes	MD5 Checksum
wa1.exe
87,288
0xFCB8647D5AB8C4640E139DF1B988CD7A

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

> Subject: Undeliverable: ZFRSSE - CMS Collateral Report(s) as of 10/27/2015

Message Body:

Delivery has failed to these recipients or groups:
[email protected]
The email address you entered couldn’t be found. Please check the recipient’s email address and try to resend the message. If the problem continues, please contact your helpdesk.
Diagnostic information for administrators:
Generating server: ESHH-MAL-01.eshp.co.th
[email protected]
Remote Server returned '550 5.1.1 RESOLVER.ADR.RecipNotFoun

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		2015-October-28 19:13 GMT
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