Cybercriminals are currently spamvertising millions of emails, impersonating Friendster,  in an attempt to trick its current and prospective users into clicking on a malicious link found in the email.

Upon clicking on the link, users are exposed to the client-side exploits served by the latest version of the Black Hole exploit kit.

More details:

Sample screenshot of the spamvertised email:

Sample screenshot of the obfuscated Java script loading the malicious iFrame:

Malicious URL: hxxp://

Client-side exploits serving URL: hxxp:// 738070736060b&grrhh=03&ndgywdt=nyurdae&aquotd=uox

Client-side exploits served: CVE-2010-0188 used to respond to the following IPs –;;;

Responding to the same IPs are also the following malicious domains:

Sample detection rate for the malicious iFrame loading script: friedster.htmlMD5: c444036179aa371aebf9bae3e7cc5eef – detected by 12 out of 42 antivirus scanners as Exploit.JS.Blacole; Trojan.JS.Iframe.acn

Upon successful client-side exploitation, the campaign drops MD5: 8fa93035ba01238dd7a55c378d1c2e40 on the affected host, currently detected by 24 out of 43 antivirus scanners as Trojan-Ransom.Win32.PornoAsset.aeuz; Worm:Win32/Cridex.E

Upon execution, the sample phones back to

What’s also worth pointing out in regard to this campaign is the fact that, during the time the Friendster-themed campaign was spamvertised, another campaign was also launched with identical MD5 for the javascript obfuscation script.

Sample screenshot of the spamvertised campaign:

Clearly, both campaigns have been launched by the same cybercriminal/gang of cybercriminals.

Webroot SecureAnywhere users are proactively protected from these threats.

You can find more about Dancho Danchev at his LinkedIn Profile. You can also follow him on  Twitter.

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Blog Staff

The Webroot blog offers expert insights and analysis into the latest cybersecurity trends. Whether you’re a home or business user, we’re dedicated to giving you the awareness and knowledge needed to stay ahead of today’s cyber threats.

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