Dark Reading is part of the Informa Tech Division of Informa PLC

This site is operated by a business or businesses owned by Informa PLC and all copyright resides with them.Informa PLC's registered office is 5 Howick Place, London SW1P 1WG. Registered in England and Wales. Number 8860726.

Perimeter

Guest Blog // Selected Security Content Provided By Sophos
What's This?
4/9/2009
08:28 AM
Graham Cluley
Graham Cluley
Security Insights
50%
50%

Hackers Launch Fake Conficker Antivirus Attacks

With all the focus on the Conficker worm in recent weeks, it should come as no surprise at all to find that cybercriminals are taking advantage of the headline-grabbing worm for their own ends.

With all the focus on the Conficker worm in recent weeks, it should come as no surprise at all to find that cybercriminals are taking advantage of the headline-grabbing worm for their own ends.Evidence of this can be seen in a malicious spam campaign, intercepted by experts at SophosLabs, which poses as a security warning from Microsoft's security department.

The email messages tell the unsuspecting user that "Microsoft has been alerted by your Internet company that your system is showing signs of infection," and advising that a security check is run on the computer:

Of course, clicking on the link contained inside the email is a very bad idea, especially for anyone who can't resist acting on the following message:

Yes, you've guessed it. This is another example of a fake antivirus or scareware attack, designed to frighten users into parting with their hard-earned cash by displaying bogus security warnings. The free scan will claim to find malware on your computer, and then scare you into purchasing a "remedy" from the hackers.

The irony is that the more we teach computer users about the importance of information security and raise their awareness of Internet threats, the greater the temptation for the hackers to take advantage of their heightened awareness by scaring people into spending money unnecessarily.

And if the hackers are prepared to use dishonorable means to display their bogus warnings in the first place, then how can you feel confident they won't do something illegal with your credit card if you do buy their "clean-up" software?

Graham Cluley is senior technology consultant at Sophos, and has been working in the computer security field since the early 1990s. When he's not updating his other blog on the Sophos website you can find him on Twitter at @gcluley. Special to Dark Reading.

Comment  | 
Print  | 
More Insights
Comments
Oldest First  |  Newest First  |  Threaded View
Navigating Security in the Cloud
Diya Jolly, Chief Product Officer, Okta,  12/4/2019
Register for Dark Reading Newsletters
White Papers
Video
Cartoon Contest
Current Issue
Navigating the Deluge of Security Data
In this Tech Digest, Dark Reading shares the experiences of some top security practitioners as they navigate volumes of security data. We examine some examples of how enterprises can cull this data to find the clues they need.
Flash Poll
Rethinking Enterprise Data Defense
Rethinking Enterprise Data Defense
Frustrated with recurring intrusions and breaches, cybersecurity professionals are questioning some of the industrys conventional wisdom. Heres a look at what theyre thinking about.
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2019-18575
PUBLISHED: 2019-12-06
Dell Command Configure versions prior to 4.2.1 contain an uncontrolled search path vulnerability. A locally authenticated malicious user could exploit this vulnerability by creating a symlink to a target file, allowing the attacker to overwrite or corrupt a specified file on the system.
CVE-2019-11293
PUBLISHED: 2019-12-06
Cloud Foundry UAA Release, versions prior to v74.10.0, when set to logging level DEBUG, logs client_secret credentials when sent as a query parameter. A remote authenticated malicious user could gain access to user credentials via the uaa.log file if authentication is provided via query parameters.
CVE-2019-16771
PUBLISHED: 2019-12-06
Versions of Armeria 0.85.0 through and including 0.96.0 are vulnerable to HTTP response splitting, which allows remote attackers to inject arbitrary HTTP headers via CRLF sequences when unsanitized data is used to populate the headers of an HTTP response. This vulnerability has been patched in 0.97....
CVE-2019-1551
PUBLISHED: 2019-12-06
There is an overflow bug in the x64_64 Montgomery squaring procedure used in exponentiation with 512-bit moduli. No EC algorithms are affected. Analysis suggests that attacks against 2-prime RSA1024, 3-prime RSA1536, and DSA1024 as a result of this defect would be very difficult to perform and are n...
CVE-2019-16671
PUBLISHED: 2019-12-06
An issue was discovered on Weidmueller IE-SW-VL05M 3.6.6 Build 16102415, IE-SW-VL08MT 3.5.2 Build 16102415, and IE-SW-PL10M 3.3.16 Build 16102416 devices. Remote authenticated users can crash a device with a special packet because of Uncontrolled Resource Consumption.