I have been watching this drama since last night and I don't really want to blame OP for his mistake because everyone makes mistakes and sometimes it can ruin our entire progress which took years to build but as everyone said you holds the responsibility of paying it back to the company that is the only way to prove your not guilty.

Sometimes everything works against us and that's the life so don't lose your heart and think what you can do further and about your system I think its better to take back-up and flash the OS as soon as possible instead of looking for clipboard malware or something, and move whatever funds and any sensitive information stored should be moved to a new wallet and document.to ensure its safety.