The FINANCIAL --Despite the global COVID-19 pandemic, which started in China, Chinese cyber espionage campaigns are continuing, with a new campaign from one advanced persistent threat group targeting at least 75 enterprises in 20 countries, according to the security firm FireEye.
"Beginning this year, FireEye observed Chinese actor APT41 carry out one of the broadest campaigns by a Chinese cyber espionage actor we have observed in recent years. Between January 20 and March 11, FireEye observed APT41 attempt to exploit vulnerabilities in Citrix NetScaler/ADC, Cisco routers, and Zoho ManageEngine Desktop Central at over 75 FireEye customers.
Countries we’ve seen targeted include Australia, Canada, Denmark, Finland, France, India, Italy, Japan, Malaysia, Mexico, Philippines, Poland, Qatar, Saudi Arabia, Singapore, Sweden, Switzerland, UAE, UK and USA. The following industries were targeted: Banking/Finance, Construction, Defense Industrial Base, Government, Healthcare, High Technology, Higher Education, Legal, Manufacturing, Media, Non-profit, Oil & Gas, Petrochemical, Pharmaceutical, Real Estate, Telecommunications, Transportation, Travel, and Utility. It’s unclear if APT41 scanned the Internet and attempted exploitation en masse or selected a subset of specific organizations to target, but the victims appear to be more targeted in nature.
The initial CVE-2019-19781 exploitation activity on January 20 and January 21, 2020, involved execution of the command ‘file /bin/pwd’, which may have achieved two objectives for APT41. First, it would confirm whether the system was vulnerable and the mitigation wasn’t applied. Second, it may return architecture-related information that would be required knowledge for APT41 to successfully deploy a backdoor in a follow-up step.
One interesting thing to note is that all observed requests were only performed against Citrix devices, suggesting APT41 was operating with an already-known list of identified devices accessible on the internet.