HOMETHREATSUnsolicitedBooker
APT / THREAT GROUP🕵️ ESPIONAGEADVANCED

UnsolicitedBooker

🇨🇳China-attributed
1
campaigns
1
aliases
Last seen:Mar 17, 2026

Intelligence Profile

UnsolicitedBooker is a China-aligned APT group known for its persistent targeting of an unnamed international organization in Saudi Arabia, employing a backdoor called MarsSnake. The group utilizes spear-phishing emails, often featuring flight tickets as decoys, to infiltrate governmental organizations across Asia, Africa, and the Middle East. Their operations have included multiple intrusion attempts over several years, demonstrating a sustained interest in their target. MarsSnake provides significant control over infected machines, allowing for arbitrary command execution and file access.

Threat Analysis

UnsolicitedBooker is a advanced-sophistication threat actor attributed to China, engaged in cyber operations with a primary motivation of espionage.

The group's espionage-oriented operations suggest a state-sponsored or state-aligned mandate, typically focused on stealing intellectual property, government secrets, or military intelligence. Targets are usually selected for strategic value rather than financial gain.

Classified as an advanced threat actor, UnsolicitedBooker likely develops or acquires zero-day exploits, employs custom malware toolchains, and demonstrates long-term persistence capabilities — hallmarks of a well-resourced operation consistent with nation-state backing.

Known Campaigns

UnsolicitedBooker — Active Operations March 2026

UnsolicitedBooker is a espionage threat actor attributed to China. UnsolicitedBooker is a China-aligned APT group known for its persistent targeting of an unnamed international organization in Saudi Arabia, employing a backdoor called MarsSnake. The group utilizes spear-phishing emails, often featuring flight tickets as decoys, to infiltrate gov...

ACTIVEHIGH2026

Intelligence Reports Mentioning UnsolicitedBooker

External References

Quick Facts

TypeAPT / Threat Group
Motivation🕵️ espionage
Sophisticationadvanced
Origin🇨🇳 China
Aliases1
SourceMalpedia

Also Known As

UnsolicitedBooker

Research Links

Data sourced from Malpedia, Ransomware.live, RansomLook, and CTIWATCH OSINT collection. Actor attribution is based on available intelligence and may be incomplete.
UnsolicitedBooker — APT / Threat Group | Threat Intelligence | CTIWATCH.COM