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Orphan Tibetan Refugee Children Caregivers under Attack

12
Apr
2013


A new-ish Flash exploit is still on the loose for attack around the web. This time, the attackers have compromised a caregiver site providing support for Tibetan refugee children and are spreading backdoors signed with Winnti stolen certificates delivered with Flash exploits – the compromised web site is the NGO “Tibetan Homes Foundation”. Previously, FireEye identified similar “Lady Boyle” related malicious swf exploiting CVE-2013-0634. A notification has been sent to the contacts of the web site, but apparently the malicious footer.swf file is still hosted at the Foundation’s web site, so please do not visit it just yet. Also, be sure to update your Flash player to the latest version.


This site certainly appears to be a classic example of a “watering hole” attack. F-Secure pointed out another Lady Boyle watering hole set up against a related Uyghur group, which has been targeted in tandem following the early March World Uyghur Congress. The delivered backdoors are shown to be signed with Winnti-stolen digital certificates, including the stolen MGAME certificate.


Example of the same stolen certs reused for the backdoors, we see both the MGAME cert and the ShenZehn certs signing the backdoors:


Our products detect the Flash exploit+payload as Exploit.SWF.CVE-2013-0634.a. Here is a heatmap of our worldwide detections. Note that not all of these detections are Lady Boyle related, I estimate that at least a third of them are:




Other sites hosting the Lady Boyle swf exploit over the past couple of months have included “tibetangeeks.com”, who recently cleaned up their site and posted a cooperative plea to their attackers, and “vot.org” or the “Voice of Tibet” which is also cleaned up. So, what we have is an active watering hole campaign implementing a fairly new Flash exploit and abusing digital certificates that were stolen as a part of the ongoing Winnti targeted attack campaigns on game developers and publishers.

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