108 lines
5.2 KiB
Plaintext
108 lines
5.2 KiB
Plaintext
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<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ŀ
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<20> VIRUS REPORT <20>
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<20> Datacrime <20>
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<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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Synonyms: 1280 virus, Columbus Day, October 12th, October 13th, Friday
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13th, Munich Virus, Miami Virus
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Date of Origin: March, 1989.
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Place of Origin: Europe.
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Host Machine: PC compatibles.
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Host Files: non-resident. Infects COM files.
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OnScreen Symptoms: No screen symptoms during propagation. After October
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12 of any year, it will display the message "DATACRIME VIRUS RELEASED 1
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MARCH 1989".
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Increase in Size of Infected Files: 1280 bytes.
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Nature of Damage: Corrupts program or overlay files. Formats or erases
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all/part of disk.
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Detected by: Scanv56+, F-Prot, IBM Scan, Pro-Scan.
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Removed by: AntiCrim, Scan/D, F-Prot, or CleanUp.
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Scan Code: 00 56 8D B4 30 05 CD 21 or 8B 36 01 01 83 EE 03 8B C6 3D 00 00
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75 03 E9 02 01. Uses self-encryption. You can also search at offset 000H
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for 2E 8B 36 01 01 83 EE 03 8B C6.
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The 1280 version of Datacrime is the earliest version, followed by
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the 1168 version. Both versions infect COM files, preserving the COM
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file's date and time. This virus saves the first three bytes of its host
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to a "save area" inside the virus shell, replacing them with a branch to
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the beginning of the virus. It appends the shell to the end of the .COM
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file on a paragraph boundary. The resulting file apparently must not
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exceed 64K <197> the stack is at the top of the 64K file, where the shell
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resides. The stack must have room for virus use. It is not
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memory-resident.
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All versions of Datacrime activate after October 12th (hence the
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name October 12). In 1989 <197> its year of release <197> the day after
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October 12 was Friday the 13th (hence that name). Turning off your
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computer on that day will not provide any protection against it. The
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first time an infected program is run on or after Oct. 13, the virus will
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search through hard drive partitions (C:, then D:, etc.), then the
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directories of the A: and B: drives (in that order) for an uninfected COM
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file other than COMMAND.COM. It will ignore any COM file with a D as the
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seventh letter of its name (as in COMMAND.COM). It will then display the
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message: "Datacrime virus released 1 March 1989" and do a low-level
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format of cylinder 0 of the hard disk.
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Due to mistakes in the code, the system is almost certain to crash if
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the DOS critical error handler is called (caused by a disk missing from a
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drive, for example). If the computer has an ESDI, RLL, or SCSI
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controller, the virus may be unsuccessful in formatting the hard disk.
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The effect of this formatting is to wipe out the FAT (file allocation
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table) and the root directory, making the disk unreadable, except by
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special utilities.
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Detection:
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* The original version of the Datacrime will not infect files until
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after April 1st of the year (April Fool's Day).
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* The virus, depending on its variant, appends itself to .COM files
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(except for COMMAND.COM), increasing the .COM file by either 1168 or
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1280 bytes. In addition, the Datacrime II variant can infect .EXE
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files, increasing their size by 1514 bytes.
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* The 1168 byte version contains the hex string EB00B40ECD21B4.
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* The 1280 byte version contains the hex string 00568DB43005CD21. In
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this version, you can also look for this ten-byte hex pattern:
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2E8B36010183EE038BC6. Note: the text message is encrypted, so it can't
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be identified by a text string search or a disk utility.
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<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͻ
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<EFBFBD> This document was adapted from the book "Computer Viruses", <20>
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<EFBFBD> which is copyright and distributed by the National Computer <20>
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<EFBFBD> Security Association. It contains information compiled from <20>
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<EFBFBD> many sources. To the best of our knowledge, all information <20>
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<EFBFBD> presented here is accurate. <20>
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<EFBFBD> <20>
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<EFBFBD> Please send any updates or corrections to the NCSA, Suite 309, <20>
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<EFBFBD> 4401-A Connecticut Ave NW, Washington, DC 20008. Or call our BBS <20>
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<EFBFBD> and upload the information: (202) 364-1304. Or call us voice at <20>
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<EFBFBD> (202) 364-8252. This version was produced May 22, 1990. <20>
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<EFBFBD> <20>
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<EFBFBD> The NCSA is a non-profit organization dedicated to improving <20>
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<EFBFBD> computer security. Membership in the association is just $45 per <20>
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<EFBFBD> year. Copies of the book "Computer Viruses", which provides <20>
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<EFBFBD> detailed information on over 145 viruses, can be obtained from <20>
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<EFBFBD> the NCSA. Member price: $44; non-member price: $55. <20>
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<EFBFBD> <20>
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<EFBFBD> The document is copyright (c) 1990 NCSA. <20>
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<EFBFBD> <20>
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<EFBFBD> This document may be distributed in any format, providing <20>
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<EFBFBD> this message is not removed or altered. <20>
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<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͼ
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Downloaded From P-80 International Information Systems 304-744-2253
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