have found it 😄 it is non-sense string stored in system32/msobjs.dll and some snapshot can be seen there https://gist.github.com/brianreitz/d5b9397a2e8b3d52ceb9359897e07c3f %%2456 : Open key file. %%2457 : Delete key file. %%2458 : Read persisted key from file. %%2459 : Write persisted key to file. ... View more