Today, the United Kingdom’s National Cyber Security Centre (NCSC-UK), the United States’ Cybersecurity and Infrastructure Security Agency (CISA), National Security Agency (NSA), and Federal Bureau of Investigation (FBI), New Zealand’s National Cyber Security Centre (NCSC-NZ), Canadian Centre for Cyber Security (CCCS), and the Australian Signals Directorate (ASD) published a joint Malware Analysis Report (MAR), on Infamous Chisel a new mobile malware targeting Android devices with capabilities to enable unauthorized access to compromised devices, scan files, monitor traffic, and periodically steal sensitive information. Infamous Chisel mobile malware has been used in a malware campaign targeting Android devices in use by the Ukrainian military.

Infamous Chisel is a collection of components targeting Android devices and is attributed to Sandworm, the Russian Main Intelligence Directorate’s (GRU’s) Main Centre for Special Technologies, GTsST. The malware’s capability includes network monitoring, traffic collection, network backdoor access via The Onion Router (Tor) and Secure Shell (SSH), network scanning and Secure Copy Protocol (SCP) file transfer. 

The authoring organizations urge users, network defenders, and stakeholders to review the malware analysis report for indicators of compromise (IOCs) and detection rules and signatures to determine system compromise. For more information about malware, see CISA’s Malware, Phishing, and Ransomware page. The joint MAR can also be read in full on the NCSC-UK website. Associated files relating to this report can also be accessed via the NCSC's Malware Analysis Reports page. For more information on Russian state-sponsored cyber activity, please see CISA’s Russia Cyber Threat Overview and Advisories webpage.

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