Researchers Detail Bitter APT's Evolving Tactics as Its Geographic Scope Expands
Jun 05, 2025
Threat Intelligence / Network Security
The threat actor known as Bitter has been assessed to be a state-backed hacking group that's tasked with gathering intelligence that aligns with the interests of the Indian government. That's according to new findings jointly published by Proofpoint and Threatray in an exhaustive two-part analysis. "Their diverse toolset shows consistent coding patterns across malware families, particularly in system information gathering and string obfuscation," researchers Abdallah Elshinbary, Jonas Wagner, Nick Attfield, and Konstantin Klinger said. Bitter, also known as APT-C-08, APT-Q-37, Hazy Tiger, Orange Yali, T-APT-17, and TA397, has a history of focusing primarily on South Asian entities , with select intrusions also targeting China, Saudi Arabia, and South America. In December 2024, evidence emerged of the threat actor's targeting of Turkey using malware families such as WmRAT and MiyaRAT, indicating a gradual geographical expansion. Stating that Bitter fr...