When you open the event log, it freeze for several seconds. and a prompt comes out say it's not responding. but if you ignore it and wait for several seconds, it will resume normal. And you will found the following entry in the event log
The size of eventlog isn't very large and the computer have quite enough amount of memory.
some may be relayed hints:
It's a HP machine with HP Quick Web, so i guess the DvmMDES is not malware