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- Short: V1.94 Check for Archive/Packer/Virus
- Uploader: stoecker@epost.de (Dirk Stoecker)
- Author: stoecker@epost.de (Dirk Stoecker)
- Type: util/arc
- Requires: util/arc/xadmaster.lha
- util/pack/xfdmaster.lha
- util/virus/xvslibrary.lha
- util/pack/xpk_User.lha
- Version: 1.94
-
- This program uses xfdmaster.library (see util/pack/xfdmaster.lha) and
- xvs.library (util/virus/xvsLibrary.lha) for packer and virus scanning.
- The xadmaster.library (see util/arc/xadmaster.lha) is used to dearchive
- file and disk archives.
-
- The xfdmaster.library (V39) and xadmaster.library (V10) are needed to
- run the utility. The xvs.library is recommended! The xpkmaster.library
- is needed with ASKPWD password only (and to decrunch XPKF files).
-
- NOTE: xadmaster.library is Shareware, so think about registering when
- using this utility. See conditions in xadmaster.library distribution.
-
- CheckX unpacks archives and packed files as deep as possible:
- - you can unarchive a crunched archive as well
- - multiple crunched files can be decrunched
- - multiple archives can be extracted
- - multiple disk archives can be extracted
- - linked and crunched and archived files are no problem
-
- This all depends mainly on your memory size! I have around 50MB and have
- only little problems with really large files.
-
- Call CheckX with a ? and you get following argument list:
- FROM,LOG,SAVE/K,ALL/S,ASKPWD/S,PRINTALL/S,PRINTEXEC/S,
- NODECRUNCH/S,NOUNLINK/S,NOUNARCHIVE/S,NOUNTRACK/S,
- NOSECTOR/S,NOSILENT/S,NOSTRIP/S,NOVIRUS/S,DEBUG/S,QUIET/S,
- SAVEALL/S,CRC/S,DEEPNAME/S,SINGLEVIRUS/S
-
- Enter a ? again and you get a short doc:
- FROM source file or directory - may contain patterns
- LOG log file name
- SAVE directory, where decrunched files are saved
- ALL scan deep into directories
- ASKPWD ask for password when needed (needs xpkmaster.library)
- PRINTALL print all filenames
- PRINTEXEC print names of all executable files
- NODECRUNCH do not decrunch files with xfdmaster
- NOUNLINK do not unlink files with xfdmaster
- NOUNARCHIVE do not unarchive file archives with xadmaster
- NOUNTRACK do not unarchive track archives with xadmaster
- NOSECTOR do not check the files for virus infected sectors
- NOSILENT do not disable dos requests
- NOSTRIP do not strip useless hunks
- NOVIRUS do not scan with xvs.library for viruses
- DEBUG also output texts to serial debug engine
- QUIET do not output texts to console
- SAVEALL saves all files (also uncrunched) except address files
- CRC print CRC32 in fornt of each filename
- DEEPNAME print own name for every part (e.g. unliked parts)
- SINGLEVIRUS do not count one virus infected file multiple times
-
- A bit more explanation:
- LOG The output is written to a file as well as to the standard
- output stream. The main purpose CheckX was written for is
- to scan for crunched files and to test the decrunch
- routines. So the logging may take some more time, but is
- very stable, as the last log-entry is always the file which
- possibly crashed the machine.
- The logfile can be accessed by other programs for read and write
- the whole time CheckX works (and surely after that). But writing
- is not recommended, as this may produce a corrupted file.
- SAVE If this keyword is given, all uncrunched/unlinked/stripped
- files will be saved in the directory given with that keyword.
- The directory must already exist! Sub directories are created
- automatically.
- If files are unlinked, they get saved with .1, .2, ...
- extensions. Address crunched files are not saved. Use
- xfdDecrunchAddr or xfdDecrunch to do so.
- DEBUG Should not be used normally. This brings the normal output to
- serial debugging terminal or catcher tools like Sushi. This
- makes it a lot easier to detect files producing hits.
- ASKPWD Calls the xpkmaster.library password request to get a password.
- For file and disk archives the password is asked after first
- getting an password error. The inserted password is reused for
- next data and only if it is wrong it is again requested.
- For individual files the password is requested every time.
- NOSECTOR disables XVS sector checking. Note that CheckX normally checks
- all files and thus may produce wrong detections with normal files
- (although this should be very rare). This is done to get all disk
- images checked also.
- CRC This calculates an CRC32 for every file and prints it in front of
- the output. You may use this to check your system for
- modifications. Especially useful with PRINTALL/PRINTEXEC option
- (and sometimes with DEEPNAME).
- DEEPNAME This prints a new name for all passes (like unlinking, decrunching
- and all the others). The output thus will be much more wasted with
- name elements. The only useful usage of this is together with CRC
- option to find out the checksums of intermediate files.
- SINGLEVIRUS Sometimes XVS recognices crunched and linked versions of viruses
- as well as the uncrunched variants. CheckX thus also reports the
- virus multiple times. Also there may be multiple viruses in one
- file. This option only affects the status at end of output. It
- reduces the number of reported viruses to the number of infected
- files by eliminating multiple reports. The virus output itself is
- not affected. This may be useful to compare output with other
- virus checkers.
-
- The default options are best for virus-checking, so it is not recommended to
- turn on any of the options starting with "NO". Also to be really sure you
- found all viruses, install newest versions of XFD, XAD and XVS libraries.
-
- CheckX has following return values:
- 0 - all ok
- 5 - either no virus checking possible or virus found
- 20 - an error occured and CheckX was unable to do anything
-
- CheckX cannot scan files, which are read-protected. You get CheckX error 4
- as result in that case. Unprotect files and scan again when you want. For
- files contained in archives, the protection bits are ignored.
-
- CheckX is completely reentrant and may work fine twice or more times
- parallel (You can set the pure file protection bit and make it resident).
- But it is not recommended to call it multiple times as CheckX normally needs
- lots of memory.
-
- This is a batch tool, so drink a coffee or two or three during its work.
- Check the logfile afterwards. Use a text-editor and scan case sensitive
- for "-Virus" and you get lines which are related to viruses (and mostly
- only the important lines). A scan with "XFD-", "XAD-", "CheckX-" or
- "-Error" brings lines which produced errors.
-
- The complete number of found viruses is logged at the file end, if the
- scan found some of them. Also the scan time and the number of errors
- (if some appeared) is logged.
-
- If the permanent file scrolling slows down your computer try setting the
- output stream to a raw mode display using following redirect command:
- ">RAW:0/11/640/50/CheckX-Output/AUTO/CLOSE/WAIT".
- To get CheckX really silent either use LOG option and call CheckX with
- QUIET or redirect normal output into logfile with ">filename".
-
- CheckX detects all the viruses found by xvs.library, which contains the
- complete antivirus knowledge of VirusZ utility by Georg Hörmann, Alex van
- Niel and Jan Erik Olausen. CheckX cannot remove detected viruses. You
- still need antivirus software like VirusZ, VirusExecutor, VT or
- Virus_Checker. I always run VirusZ in the background to check for viruses.
- CheckX also scans disk archive information texts for packers and viruses,
- bootsectors of dearchived disks and is able to scan for destroyed sectors.
- The memory is scanned once after starting CheckX.
-
- Error 11 (Could not check for virus) mostly means, that the file is a bit
- to large and such files are normally archives only. So in most cases this
- error is harmless!
-
- If there are serious errors, please report them, but CheckX has a long
- way of development and I hope it is really stable now.
- Send me files, which cause the system to bring Enforcer/MungWall/PatchWork
- hits or crash the computer. If the files are larger, please contact me
- first.
-
- SortCheckX: This little tool sorts the output of CheckX by filename
- (keeping the tree structure intact). This is very helpful when comparing
- older logfiles with newer ones (as the scanning order may differ). Also
- The option OLDFIX allows to change some of the older texts to their newer
- variants, to reduce differences. This tools wants a filename as input and
- possibly also a filename as output. If there is no output filename, it
- outputs to standard output. Do not expect anything useful for other
- files than CheckX output! The CRC option sorts files created with CRC
- option.
-
- Short history (full history see source code):
- 1.85 12.07.01 : added sector checks, reduced final file size
- 1.86 30.09.01 : sector check is default now, bug fixes
- 1.87 27.01.02 : added CRC calculation and DEEPNAME option
- 1.88 31.08.02 : added ASKPWD for disk archives
- 1.89 06.10.02 : workaround for file 42.zip
- 1.90 20.11.02 : fixed CRC problem
- 1.91 29.12.02 : readded bootblock virus detection after XVS changed in this
- point.
- 1.92 30.12.02 : Last version produced to many wrong virus hits, fixed
- 1.93 01.01.03 : fixed missing TAG_DONE
- 1.94 03.01.03 : fixed bug related to 42.zip workaround, added SINGLEVIRUS
-
- This program is Freeware. Use it as you want, but WITHOUT ANY WARRANTY!
-
- Contact me at:
-
- *********************************************************************
- * snail-mail: * e-mail: *
- * Dirk Stoecker * stoecker@epost.de *
- * Geschwister-Scholl-Str. 10 * dirk@dstoecker.de *
- * 01877 Bischofswerda * world wide web: *
- * GERMANY * http://www.dstoecker.de/ *
- * phone: * pgp key: *
- * GERMANY +49 (0)3594/706666 * get from WWW pages or keyservers *
- *********************************************************************
-
-