VirTool:Win32/CeeInject.gen!KK is a generic detection for malicious files that are obfuscated using particular techniques to protect them from detection or analysis.
A malicious file is generally encrypted and/or compressed and stored inside another program, which decodes the malicious file and loads it. The malicious program might be injected into a clean process or loaded in a new process of its own. Unlike a “dropper”, the malicious executable is never written to disk as a separate file.
Malicious programs detected as VirTool:Win32/CeeInject.gen!KK can have any purpose, as this technique is utilized by many different malware families to protect them from detection or analysis.