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Novel ToddyCat APT Attacking Microsoft Exchange Servers

The targeted victims are high-profile organizations belonging to government and military sectors.

 

ToddyCat APT has been targeting Microsoft Exchange servers in enterprises throughout Asia and Europe since at least December 2020. 

The ToddyCat APT  group boosted its attacks in February 2021 and is looking for unpatched Microsoft Exchange servers with ProxyLogon exploits to launch attacks on. A passive backdoor dubbed Samurai and a new Ninja trojan were identified while following the group's activity. Both types of malware take over compromised devices and migrate laterally throughout networks. 

Some of the organisations infiltrated by the gang in three separate countries were hacked at the same time by other Chinese-backed hackers using the FunnyDream backdoor. High-profile organisations from the government and military sectors are the targeted victims. The group appears to be focused on attaining essential goals that are linked with geopolitical objectives. 

Numerous waves of attacks 

The initial wave of strikes began in December 2020 and ended in February 2021. The group was solely targeting a few government entities in Vietnam and Taiwan at the time. Between February and May 2021, the second round of assaults began targeting organisations in a variety of nations, including Iran, Russia, India, and the United Kingdom. 

The group targeted the same set of nations in the following phase, which lasted through February 2022, as well as communities from Uzbekistan, Kyrgyzstan, and Indonesia. ToddyCat Group has expressed interest in the government and military sectors and is expected to continue operations. 

Organizations should employ threat intelligence services to remain up to date on emerging dangers and defend their networks. Additionally, they should utilise the given IOCs to improve threat detection.
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