08-24-2019
Alternative for chattr
Hello
im working on "remover script" which try to remove "kthrotlds MINER VIRUS"
in next part of my remover script i have to work on files that it destroyed,
virus use chattr to open and lock files and replace them with malicious content
im looking for a solution to remove chattr and disable this command and use another alternative to lock file, with or without password.
virus has remove files content and replace it with its code, overshadowed files are cron files,
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LEARN ABOUT SUSE
apache::session::lock::file
Session::Lock::File(3) User Contributed Perl Documentation Session::Lock::File(3)
NAME
Apache::Session::Lock::File - Provides mutual exclusion using flock
SYNOPSIS
use Apache::Session::Lock::File;
my $locker = new Apache::Session::Lock::File;
$locker->acquire_read_lock($ref);
$locker->acquire_write_lock($ref);
$locker->release_read_lock($ref);
$locker->release_write_lock($ref);
$locker->release_all_locks($ref);
$locker->clean($dir, $age);
DESCRIPTION
Apache::Session::Lock::File fulfills the locking interface of Apache::Session. Mutual exclusion is achieved through the use of temporary
files and the "flock" function.
CONFIGURATION
The module must know where to create its temporary files. You must pass an argument in the usual Apache::Session style. The name of the
argument is LockDirectory and its value is the path where you want the lockfiles created. Example:
tie %s, 'Apache::Session::Blah', $id, {LockDirectory => '/var/lock/sessions'}
If you do not supply this argument, temporary files will be created in /tmp.
NOTES
clean
This module does not unlink temporary files, because it interferes with proper locking. This can cause problems on certain systems (Linux)
whose file systems (ext2) do not perform well with lots of files in one directory. To prevent this you should use a script to clean out
old files from your lock directory. The meaning of old is left as a policy decision for the implementor, but a method is provided for
implementing that policy. You can use the "clean" method of this module to remove files unmodified in the last $age seconds. Example:
my $l = new Apache::Session::Lock::File;
$l->clean('/var/lock/sessions', 3600) #remove files older than 1 hour
acquire_read_lock
Will do nothing if write lock is in effect, only set readlock flag to true.
release_read_lock
Will do nothing if write lock is in effect, only set readlock flag to false.
Win32 and Cygwin
Windows cannot escalate lock, so all locks will be exclusive.
release_read_lock not supported - it is not used by Apache::Session.
When deleting files, they are not locked (Win32 only).
AUTHOR
This module was written by Jeffrey William Baker <jwbaker@acm.org>.
SEE ALSO
Apache::Session
perl v5.12.1 2007-09-28 Session::Lock::File(3)