Category: Microsoft Windows

Petya Ransomware a Front for State Cyberattack

The recently released and poorly constructed variant of the Petya ransomware, was not designed to make money… so it is not by definition, ransomware. Petya is a wiper. It was designed specifically to spread quickly across the globe and completely and permanently eviscerate any machine it infects. First deployed in Russia and specifically targeting the Ukraine via MeDOC, it has…

How to prevent WINMAIL.DAT attachments in Exchange Online by disabling TNEF

I’ve run into this problem a handful of times over the last few years. An Exchange user sends and e-mail with attachment(s) to a non-Exchange user and the recipient receives nothing but a WINMAIL.DAT file that they cannot open. The most commonly preached resolution was simply to tell the sender to stop using the Rich Text Format (RTF) when sending…

Adobe Flash 0-Day listed in the Angler and Magnitude Exploit Kits

It’s no surprise that another vulnerability was found in Adobe Flash. The latest flaw has been branded CVE-2015-3113 and has been added to the ever growing list of vulnerabilities listed in the Angler and Magnitude exploit kits (both of which are readily available). While Adobe released an update for this exploit last week, that update is dependent on users actually…

There is a new Petya (but not really Petya) ransomware variant eviscerating machines globally...What can you do?