With the rise of new technological innovations and security mechanisms, threat actors are also upgrading their skills and evolving rapidly.
These evolutions have resulted in an alarming increase in the quick growth of Android malware.
Recently, CISA (The United States’ Cybersecurity and Infrastructure Security Agency), along with the following entities, unveiled a report on the notorious Android malware dubbed “Chisel,” which steals users’ data, monitors their traffic, and their online activities:-
- The United Kingdom’s National Cyber Security Centre (NCSC-UK)
- National Security Agency (NSA)
- Federal Bureau of Investigation (FBI)
- New Zealand’s National Cyber Security Centre (NCSC-NZ)
- The Canadian Centre for Cyber Security (CCCS)
- The Australian Signals Directorate (ASD)
Chisel Android Malware
Chisel mobile malware targets Android devices actively with the following key capabilities:-
- Unauthorized access
- Scanning files
- Monitoring traffic
- Stealing sensitive data
- Network monitoring
- Traffic collection
- SSH access
- Network scanning
- SCP file transfer
It’s been reported that the Android devices that are used by the Ukrainian military are actively targeted via a malicious campaign in which the operators have used the stealthy Chisel mobile malware.
Chisel configures Tor for remote access using a modified Dropbear binary for SSH. It also scans the local networks and gathers information about the following things:-
- Active hosts
- Open ports
- Banners
Moreover, the security analysts from the authoring organizations have tied Chisel with the Russian Main Intelligence Directorate’s (GRU’s) Main Centre for Special Technologies, GTsST, Sandworm.
Recommendations
Here below, we have mentioned all the recommendations provided by the cybersecurity defenders from the authoring organizations:-
- Make sure to review the malware analysis report for IOCs.
- Ensure to go through detection rules.
- Analyze the signatures to determine system compromise.
- Always use robust AV solutions and tools.
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