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LIST by FUNCTION LIST by NAME... ...A - L ...M - Z INDIVIDUAL PAGES... ...Anti Virus Utils ...Archive Utils (2) ...Batch Utils ...Calculators, Stats ...Calendar, Clock, PIM ...Communications ...Compress, Encode, Crypt ...Dbase, Genealogy, S-sheet ...Directory Utils (2) ...Disk Utilities (2) ...File Find, Identify ...File Managers ...File Utils (2) ...Graphics (2) ...HTML Utils (2) ...Keyboard, Mouse Utils ...Menu ...Miscellaneous (2) ...Screen Utils ...Sound, CD players ...Text Editors (2) ...Text Viewers ...Text Format, Filter (2) ...Text Search, Replace ...Text Spellers, Dicts ...Other Text Utils ...WIN31 related utils NEW ADDITIONS NEWS Get TEXT ver. (zip) INTRODUCTION MORE RESOURCES FRONT PAGE
Also see: Yves Bellefeuille's freeware list for other A-V utilities.
ANTI-VIRUS SCANNERS
I won't presume to know much about the performance of the virus scanners listed here. F-PROT has consistently achieved top or near-top honors in most test comparisons. AVSCAN is less well known, but gets respectable marks in the reviews I've seen. I assume NAVC is a well-tested command line AV scanner.
1. F-PROT- Anti-virus monitor, scanner, and disinfectant.
unrated [updated 07-10-99]
F-Prot is a shareware anti-virus package that has received rave reviews. Not only is it free for individual (non-commercial) use, but it is regularly updated to keep pace with new virus types. The F-Prot scanner/disinfectant and the antivirus monitoring program (memory resident) are DOS programs. "...also includes a VxD program for Windows '95/'98 users and a Windows version of a Word/Excel macro scanner." Can scan within archives (zip/arj) and many packed executables. Requires a 386+ PC.
Author: Fridrik Skulason / Frisk Software Int. (1999). Primary distribution site / virus definition updates.
download fp-305b.zip (about 2.1 MB)
2. NAVC- Norton command-line AV scanner.
unrated [added 04-12-99]
Revise description. NAVC is a free command line a-v scanner from Symantec Corp- this scanner also purports to repair infected files. Can scan zipped files as well.
NAVC pathname [options] /? Display the help screen. /A Scan all drives (A: and B: are skipped.) /L Scan local drives (A: and B: are skipped.) /B[+|-] Enable or disable scanning of boot records. If /B[+|-] is omitted, /B+ is the default. /BOOT Scan only the boot sectors of specified drives. /M[+|-] Enable or disable scanning of memory. If /M[+|-] is omitted, /M+ is the default. /MEM Scan only memory. /S[+|-] Enable or disable scanning subdirectories. If /S[+|-] is omitted, /S- is the default. /REPAIR Repair infected files automatically. /DELETE Delete infected files automatically. /HALT Halt the system if a virus is found. /CFG:[directory] Specify the directory containing NAVC configuration files. /LOG:file Create and log to the specified file. /APPENDLOG:file Append to an existing log file. /DOALLFILES Scan all files, not just executables. /ZIPS Scan files contained in compressed files. /NOBEEP Run silently (no beeps). /HELPERROR List possible DOS errorlevels returned by NAVC. If desired, you can run NAVC from a batch file and process the errorlevel with IF ERRORLEVEL constructions.
Limitations: Doesn't scan files on FAT32, NTFS or a HPFS partitions but will scan and clean the master boot record of the primary hard drive.
Distributed as a winzip SFX but one can also extract contents with any DOS zip extracter that reads zip SFX's. Link below is to English version; other language versions may exist (?) on Symantec's web site. More info on this scanner is at Symantec. Regular virus definition updates can be found here (or FTP)- users of plain DOS should get a *16* bit updater (mmddi16*.exe ). Author: Symantec Corp. Suggested by Miky Gutman, Israel. (1999).
download navc10.exe (about 1.4MB)
3. AVScan- Anti-virus scanner.
unrated [added 7-97; updated 12-3-98]
AVScan is a German freeware scanner that is not as widely distributed as F-PROT. It is a modestly sized package (580K) and is (irregularly) updated with new virus signatures. AVScan detects over 8000 virus signatures including polymorphic viruses. Unlike F-PROT, this freeware version does not contain a memory resident antivirus monitoring program, nor can it "clean" infected files (the commercial version can). Doesn't appear to have an option to unpack archived files prior to scanning, but it will decompress some packed executables.
Use the help switch (/?) to display an extensive series of help screens describing the large option list. Use the /I switch for a list of detectable viruses. A free Linux version is also available from home page. Author: Tjark Auerbach/ H+BEDV Datentechnik GmbH. Web site.
Changes in v4.54 (11-98): Added new signatures.
ftp://ftp.antivir.de/antivir/english/avscan.zip (580K, English.) 07-01-99: LINK DEAD- Package no longer available??
FILE CHECKSUM UTILS
1. CHK-SAFE- Calculates MD5 hash values for files. 2. CHKSUM- Calculates 32 bit CRC and 16 bit checksums.
1.CHK-SAFE [unrated, added 06-12-99] uses the MD5 Hash algorithm developed by RSA Data security, Inc. The MD5 Hash is harder to fool than 16 bit CRCs and some other commonly used methods. Authors: Don Peters, Robert Bullock, Bill Lambdin (1994).
2. CHKSUM [unrated, added 06-12-99]: CHKSUM calculates two checksums for each file: a 32-bit CRC and a 16-bit checksum. A86 source incl., distrib. under the Gnu Public License. Author: Charles Dye (1999). Home Page.
OTHER
ADinf- Anti-viral, disk integrity checker.
unrated [added 04-13-99 updated 05-25-99]
From the docs: ADinf "is a unique and powerful disk integrity checker which scans a disk, reading its sectors...through BIOS. It does not utilize DOS tools in searching for infectors and, therefore, can trap formidable stealth viruses that are known to intercept more than twenty DOS functions. It also traps infectors in disk drivers and hitherto- unknown viruses...Unlike other anti-virus tools....ADinf detects viruses on booting a system from the hard disk...[B]esides detecting infectors, ADinf scrupulously x-rays a system for full data integrity and security, and for other data modifications...
ADinf reads vital data about such parameters as the memory size, the address of Int 13h handler in BIOS, Hard Disk Parameter Tables, the master boot record and boot sectors, bad clusters, directory tree, and data on all files under control; then creates a [hidden] diskinfo table for every drive and saves [table in root directory]...At subsequent starts, ADinf first reads these parameters and compares them with those in its diskinfo tables. During scanning it notes any changes in the size of the memory allotted to DOS, Hard Disk Parameter Tables, master boot record, boot sectors of every logical drive, as well as new bad clusters, directories and files newly created or deleted since the last check, and changed files." Reports to screen.
Notes: May run out of memory when attempting to view large report entries.
The non-commercial version described here does not support personal diskinfo tables, editing of the filename extension list, lacks the option to skip subdirectories during checking, and reports to screen only (no create log file option). Also see DialogueScience Home Page for other free a-v software. Author: Dmitry Mostovoy, Russia (1999). Suggested by: Originally featured on Yves Bellefeuille's Best freeware for DOS and Windows 3.1.
05-25-99: latest version is v12.13 (5-99); Version history unavailable?
download adinf.zip (330K) Russian and German versions also available: http://www.dialognauka.ru/dsav/
DISKSECURE - Protects basic disk files from Viruses.
unrated [added 10-25-98]
reviewed by H. Schwartz (10-06-98)
DISKSECURE: There are three critical files (well, not actually files) at the beginning of your hard disk that perhaps up to 1/3 of the viruses in the wild like to hide in, or like to attack and corrupt:
By corrupting or destroying any one of these three items, a virus can make a disk completely unusable. DISKSECURE protects items #1 and #2 from viruses by:
DISKSECURE also includes a program that bypasses its defenses if you want a program to be able to access your hard disk's beginning sectors directly. DISKSECURE cannot protect your File Allocation Table in this way because it is constantly being written to and changed as new files are created, old ones deleted, etc. To protect this critical table, use a utility like stf.com (save the fat) to back up the FAT table each time you start your computer. Author: Padgett Peterson (1994).
download ds242.zip (31K)
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