ccekrnl.dat
Comodo KillSwitch ccekrnl.dat (file version 12, 2, 2, 8012) is a kernel driver despite its .dat extension. Its CCEKrnl device exposes IOCTL 0x22e01f, whose handler passes a caller-supplied process identifier, desired access mask, and output-handle pointer to ZwOpenProcess without a target or access-mask restriction in that handler. The submitter reports opening the device from an unrelated client, obtaining PROCESS_TERMINATE access to a self-created ordinary child, and terminating it in user mode. This is a kernel process-handle broker, not a direct driver termination command or a trusted-client injection chain. Static analysis confirms the device and process-open dispatch path; the bounded runtime result is externally reported. The driver must be loaded and its device accessible. Protected-process access, EDR termination, and behavior of other versions are not established.
Known samples 1
0 recorded TRUE · 0 recorded FALSE · 1 unknown for loading despite HVCI. Results apply to individual samples.
ccekrnl.datSample 1 · HVCI unknown
- MD5
d42b6b79e30f1184728675137652b022- SHA1
e6f9046228624eb14f9399e9d23187c144a5b1f9- SHA256
bf0c3dde6b66a1ee7a43f7d9efef2a22334ad727bee2d4a72d7a8e82d3a781e5- Imphash
99fce758a31c1cca1a50c983f3af756c- Authentihash MD5
9de4a487bb8f3b3a93e1b9a1e5db9391- Authentihash SHA1
393fa808e71ae6c59c1a364578704f1e104b742b- Authentihash SHA256
70e4dcfd20467a7a7a6acf5842a278deb8e323a481219d6b45cac56be5f8a35a- Machine
- AMD64
- Version
- 12, 2, 2, 8012 built by: WinDDK
- Publisher
- COMODO
Research & references
Acknowledgement: Xusheng Li @xusheng6

