CiscoCISCO-THREAT-41677Threat Outbreak Alert RuleID18902: Email Messages Distributing Malicious Software on October 22, 2015
Medium
Alert ID:
41677
First Published:
2015 October 22 20:25 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 (RuleID18902) may contain the following files:
| Name | Size in Bytes | MD5 Checksum |
|---|---|---|
| fax_(606) 099-7159.doc | ||
| 207,360 | ||
| 0xFAEB4A6b936FF92B824CB2d8DD56D5A5 |
The following text is a sample of the email message that is associated with this threat outbreak:
> Subject:** Undeliverable: Incoming fax**
Message Body:
Delivery has failed to these recipients or groups The e-mail address you entered couldn’t be found. Please check the recipient’s e-mail address and try to resend the message. If the problem continues, please contact your helpdesk. Diagnostic information for administrators #550 5.1.1 RESOLVER.ADR.RecipNotFound; not found ## You have received a new 4 page(s). **Sender ** Date 21 October 2015 Size 3 page(s) Your fax can be found attached to this email. Thank you for choosing eFax
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-22 20:25 GMT | |
| Show Less |
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