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Threat Outbreak Alert

Threat Outbreak Alert: Fake LinkedIn Contact Request E-mail Messages on September 27, 2010

 
Threat Type:IntelliShield: Threat Outbreak Alert
IntelliShield ID:21440
Version:1
First Published:2010 September 28 13:29 GMT
Last Published:2010 September 28 13:29 GMT
Port: Not available
Urgency:Unlikely Use
Credibility:Confirmed
Severity:Mild Damage
 
 
Version Summary:

Cisco Security has detected significant activity on September 27, 2010.

 

Description
 

Cisco Security has detected significant activity related to spam e-mail messages that claim to contain a fake LinkedIn contact request for the recipient.  The e-mail message contains a malicious link that, if followed by the recipient, attempts to install malicious software on the recipient's system without the user's knowledge.

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

Subject: LinkedIn alert

Message Body:

LinkedIn

REMINDERS

Invitation reminders:
From Pedro Vaughan (Friend)

PENDING MESSGAGES:
There are a total of 2 messages awaiting your response. Visit your InBox now.

Don't want to receive e-mail notifications? Adjust your message settings.

LinkedIn values your privacy.  At no time LinkedIn made your e-mail address available to any other LinkedIn user without your permission. 2010, LinkedIn Corporation.

The malware associated with this threat belongs to the Zeus data theft malware family.  This malware embeds itself in the user's web browser when the malicious link is followed.  After embedding, this malware could perform malicious actions, such as stealing the user's online banking credentials.

Cisco Security analysts examine real-world e-mail traffic data that is collected from over 100,000 contributing organizations worldwide.  This data helps provide a range of information about and analysis of global e-mail security threats and trends.  Cisco will continue to monitor this threat and automatically adapt IronPort systems to protect customers.  This report will be updated if there are significant changes or if the risk to end users increases.

Cisco IronPort Virus Outbreak Filters protect customers during the critical period between the first exploit of a virus outbreak and the release of vendor antivirus signatures.  E-mail that is managed by Cisco and end users who are protected by Cisco IronPort web security appliances will not be impacted by these attacks.  Cisco IronPort appliances are automatically updated to prevent both spam e-mail and hostile web URLs from being passed to the end user.

Related Links
Cisco Security
Cisco Threat Operations Center
Cisco SenderBase Security Network

 
Alert History
 

Initial Release



Product Sets
 
The security vulnerability applies to the following combinations of products.

Primary Products:
IntelliShieldThreat Outbreak Alert Original Release Base

Associated Products:
N/A




Alerts and bulletins on the Cisco Security Intelligence Operations Portal are highlighted by analysts in the Cisco Threat Operations Center and represent a subset of the comprehensive content that is available through Cisco Security IntelliShield Alert Manager Service. This customizable threat and vulnerability alert service provides security staff with access to timely, accurate, and credible information about threats and vulnerabilities that may affect their environment.


LEGAL DISCLAIMER
The urgency and severity ratings of this alert are not tailored to individual users; users may value alerts differently based upon their network configurations and circumstances. THE ALERT, AND INFORMATION CONTAINED THEREIN, ARE PROVIDED ON AN "AS IS" BASIS AND DO NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE ALERT, AND INFORMATION CONTAINED THEREIN, OR MATERIALS LINKED FROM THE ALERT, IS AT YOUR OWN RISK. INFORMATION IN THIS ALERT AND ANY RELATED COMMUNICATIONS IS BASED ON OUR KNOWLEDGE AT THE TIME OF PUBLICATION AND IS SUBJECT TO CHANGE WITHOUT NOTICE. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE ALERTS AT ANY TIME.
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