Suspicious startup program

Those entries are commonly leftover startup items rather than active malware. Similar cases in Microsoft Q&A identified random GUID-like names and numbers in Startup apps as orphaned entries left behind by software such as games, and the recommended cleanup was to remove the startup entries with Autoruns.

Recommended steps:

1. Run Autoruns as administrator.
2. Look for the two startup entries that match the names shown in Task Manager.
3. If found, first uncheck them to disable them.
4. If they are clearly unwanted leftovers, use Delete in Autoruns to remove the startup configuration entry.
5. If the entries do not appear immediately in Autoruns, enable them in Task Manager first, then return to Autoruns and click Refresh.

Useful Autoruns actions:

• Jump to Entry opens the Registry or file system location for the startup item.
• Properties shows details for the selected executable when available.
• Hide Signed Microsoft Entries can help narrow the list to third-party items.

Caution: deleting startup entries is more permanent than disabling them. Disable first, restart, and confirm nothing important is affected before deleting.

References:

• Autoruns v14.3
• strange startup program by the name of 49 and fdc27cf0-... - Microsoft Q&A
• Two start up applications "C8df" and "1"? Should I be concerned? - Microsoft Q&A