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Posts Tagged ‘Execution’

A lot of malware modify themselves to either hide from security software when they copy themselves to the compromised computer or to hinder engineers attempting to analyze the malware by executing the decrypted memory area and reading the decrypted memory value. This blog examines the behavior of Trojans that modify themselves by sharing memory.The malware […]

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Our analysis of Trojan.Jokra, the threat which recently caused major outages within the Korean Broadcasting and Banking sectors, has produced another wiper.Security researchers the past few days have been discussing the wiper component found in this Trojan, specifically different wiper versions and the timings involved. We have seen the following strings used in four different […]

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While testing malware recently, we got some logs from our automated analysis system showing a few samples that are only partially replicated. We have heuristics that predict the behavior of a sample; but if that prediction fails, then the heuristics identify the state of a sample and decide if it is worth sending to our […]

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