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This study contains a detailed technical report prepared after analysing a sample of malicious code identified as Cring, the main purpose of which is to identify the actions it carries out, by performing an advanced analysis of the sample, using the set of tools used by the team of analysts.

This study focuses on the malicious code FluBot, a Trojan specially designed for Android devices and which has been present in multiple fraudulent SMS campaigns since 2020, in which it spoofs logistics companies seeking to have the user install a malicious application.

Through this study, a detail technical analysis of the threat is undertaken, with a sample of the malicious code, which belongs to the Mekotio family, with the main aim of identifying the actions this software carries out, using the set of tools used by this team of analysts.