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The Register – Exploited Hotmail bug stole email without warning

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Microsoft has patched a bug in its Hotmail email service that attackers were exploiting to silently steal confidential correspondences and user contacts from unsuspecting victims.

The vulnerability was actively being exploited using emails that contained malicious scripts, Trend Micro researcher Karl Dominguez said Monday. Successful attacks required only that a Hotmail user open the malicious email or view it in a preview window. The commands embedded in the emails uploaded users’ correspondences and user contacts to servers under the control of attackers without requiring the victim to click on links or otherwise take any action.

The scripts also also had the capability of enabling email forwarding on the targeted Hotmail account, allowing attackers to view emails sent to the victim in the future.

Trend Micro researchers learned of the in-the-wild attacks after a colleague in Taiwan received one of the booby-trapped emails. The email purported to be a security warning concerning the victim’s Facebook account.

Read more: The Register


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