Smoking Guns – Smoke Loader learned new tricks

Cisco Talos has been tracking a new version of Smoke Loader — a malicious application that can be used to load other malware — for the past several months following an alert from Cisco Advanced Malware Protection’s (AMP) Exploit Prevention engine. AMP successfully stopped the malware before it was able to infect the host, but further analysis showed some developments in the Smoke Loader sample resulting from this chain of malware that intrigued us. This includes one of the first uses of the PROPagate injection technique in real-world malware. Besides a report released at the end of last week describing a different RIG Exploit Kit-based campaign, we haven’t seen real-world malware using this.

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