Root cannot edit crontab












2















I need help. I'm using ubuntu 16.04.5 LTS. i wanna edit the crontab and i already login as root. when i run command "crontab -e", there is already a schedule that download file and execute. i think it's a trojan so i want to remove from crontab but everytime i change the crontab, the error message show "operation not permitted".



crontab list



cannot edit crontab



file access



How to fix this problem and remove the injected script in my crontab?










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  • How ful are your disks?

    – davidgo
    Jan 14 at 7:20











  • First of all, welcome to Super User! We are always glad to help, but you apparently have two Super User accounts: this one and this one. Please take the time to utilize the following Help Center tutorial and ask the Super User staff to merge your accounts: I accidentally created two accounts; how do I merge them?

    – Run5k
    Jan 15 at 5:06
















2















I need help. I'm using ubuntu 16.04.5 LTS. i wanna edit the crontab and i already login as root. when i run command "crontab -e", there is already a schedule that download file and execute. i think it's a trojan so i want to remove from crontab but everytime i change the crontab, the error message show "operation not permitted".



crontab list



cannot edit crontab



file access



How to fix this problem and remove the injected script in my crontab?










share|improve this question

























  • How ful are your disks?

    – davidgo
    Jan 14 at 7:20











  • First of all, welcome to Super User! We are always glad to help, but you apparently have two Super User accounts: this one and this one. Please take the time to utilize the following Help Center tutorial and ask the Super User staff to merge your accounts: I accidentally created two accounts; how do I merge them?

    – Run5k
    Jan 15 at 5:06














2












2








2








I need help. I'm using ubuntu 16.04.5 LTS. i wanna edit the crontab and i already login as root. when i run command "crontab -e", there is already a schedule that download file and execute. i think it's a trojan so i want to remove from crontab but everytime i change the crontab, the error message show "operation not permitted".



crontab list



cannot edit crontab



file access



How to fix this problem and remove the injected script in my crontab?










share|improve this question
















I need help. I'm using ubuntu 16.04.5 LTS. i wanna edit the crontab and i already login as root. when i run command "crontab -e", there is already a schedule that download file and execute. i think it's a trojan so i want to remove from crontab but everytime i change the crontab, the error message show "operation not permitted".



crontab list



cannot edit crontab



file access



How to fix this problem and remove the injected script in my crontab?







linux ubuntu bash cron






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Jan 14 at 12:09









Ahmed Ashour

1,3201715




1,3201715










asked Jan 14 at 6:49









ZuhriZuhri

111




111













  • How ful are your disks?

    – davidgo
    Jan 14 at 7:20











  • First of all, welcome to Super User! We are always glad to help, but you apparently have two Super User accounts: this one and this one. Please take the time to utilize the following Help Center tutorial and ask the Super User staff to merge your accounts: I accidentally created two accounts; how do I merge them?

    – Run5k
    Jan 15 at 5:06



















  • How ful are your disks?

    – davidgo
    Jan 14 at 7:20











  • First of all, welcome to Super User! We are always glad to help, but you apparently have two Super User accounts: this one and this one. Please take the time to utilize the following Help Center tutorial and ask the Super User staff to merge your accounts: I accidentally created two accounts; how do I merge them?

    – Run5k
    Jan 15 at 5:06

















How ful are your disks?

– davidgo
Jan 14 at 7:20





How ful are your disks?

– davidgo
Jan 14 at 7:20













First of all, welcome to Super User! We are always glad to help, but you apparently have two Super User accounts: this one and this one. Please take the time to utilize the following Help Center tutorial and ask the Super User staff to merge your accounts: I accidentally created two accounts; how do I merge them?

– Run5k
Jan 15 at 5:06





First of all, welcome to Super User! We are always glad to help, but you apparently have two Super User accounts: this one and this one. Please take the time to utilize the following Help Center tutorial and ask the Super User staff to merge your accounts: I accidentally created two accounts; how do I merge them?

– Run5k
Jan 15 at 5:06










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This error message is often shown for files with the 'immutable' or 'append-only' attributes. Use lsattr on the files (and their parent folder) to check whether they have this attribute, and chattr to remove it.






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    This error message is often shown for files with the 'immutable' or 'append-only' attributes. Use lsattr on the files (and their parent folder) to check whether they have this attribute, and chattr to remove it.






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      1














      This error message is often shown for files with the 'immutable' or 'append-only' attributes. Use lsattr on the files (and their parent folder) to check whether they have this attribute, and chattr to remove it.






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        1







        This error message is often shown for files with the 'immutable' or 'append-only' attributes. Use lsattr on the files (and their parent folder) to check whether they have this attribute, and chattr to remove it.






        share|improve this answer













        This error message is often shown for files with the 'immutable' or 'append-only' attributes. Use lsattr on the files (and their parent folder) to check whether they have this attribute, and chattr to remove it.







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        answered Jan 14 at 6:53









        grawitygrawity

        237k37503556




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