Analysis of Attack Against National Games of China Systems

Avast - 

Introduction

On September 15, 2021 the National Games of China began in the Chinese city of Shaanxi. It is an event similar if not identical to the Olympics, but only hosts athletes from China. Earlier in September, our colleague David Álvarez found a malware sample with a suspicious file extension of a picture and decided to investigate where it came from. Later, he also found a report of the incident from the National Games IT team on VirusTotal stating that the attack occurred before the Games started. Attached to the report were access logs from the web-server and SQL database. By analyzing these logs, we gathered initial information about the attack. These logs only include request path, and sadly do not reveal content of POST requests much needed to fully understand what commands attackers sent to their web shells, but even with this limited information we were able to outline the attack and determine the initial point of intrusion with moderate confidence.

In this posting, we are sharing our own research on the incident, the samples and the exploits used by the attackers, detailing what appears to be a successful breach of systems hosting content for the National Games prior

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