The Little Black Book of Computer Viruses phần 10 potx

... time for motor startup is 156 The Little Black Book of Computer Viruses In all, this CD is one of the most fascinating collections of secret underground computer software on earth—a full 157 megabytes ... 162 The Little Black Book of Computer Viruses Computer Viruses, Artificial Life and Evolution By Mark A. Ludwig, 373 Pages, 1993, $26.95 ISBN 0-92940...

Ngày tải lên: 14/08/2014, 18:22

... relative to the start of the code in the EXE file. This is modified by DOS at load time. 18H 2 Relocation Tbl Offset Offset of the start of the relocation table from the start of the file, ... risk! It’s not like any other computer program you’ve ever run! 52 The Little Black Book of Computer Viruses infecting every EXE file on the system. To do that...

Ngày tải lên: 14/08/2014, 18:22

... START 121 The Little Black Book of Computer Viruses ;Display the null terminated string at MESSAGE. DISP_MSG: MOV SI,OFFSET MESSAGE ;set offset of message up DM1: MOV AH,0EH ;Execute BIOS INT 10H, ... RISK!! 129 The Little Black Book of Computer Viruses :100 1500016FD7D5BB870005033C050CB33D2F736FC :100 16000187CFEC28AEA33D2F7361A7C8816297CBC :100 170008BD0C3...

Ngày tải lên: 14/08/2014, 18:22

... sort? Per- haps they are the electronic analog of the simplest one-celled 8 The Little Black Book of Computer Viruses The Little Black Book of Computer Viruses Volume One: The Basic Technology By ... protected. 4 The Little Black Book of Computer Viruses day to day computing. Many people think of viruses as sort of a black art. The p...

Ngày tải lên: 14/08/2014, 18:22

... File Image PSP cs=ds=es=ss ip sp 0H 100 H FFFFH Figure 3: Memory map just before executing a COM file. 26 The Little Black Book of Computer Viruses essors. In the CP/M world, 64 kilobytes was all the memory a computer had. The ... when they are correctly written. Which- ever assembler you decide to use, though, the viruses in this book 19 The Little Black B...

Ngày tải lên: 14/08/2014, 18:22

... Found Yes No 34 The Little Black Book of Computer Viruses cx:dx is used as the offset from the end of the file. Since the first thing the virus must do is place its code at the end of the COM file it ... [HANDLE] 44 The Little Black Book of Computer Viruses Now, with the main body of viral code appended to the end of the COM file under a...

Ngày tải lên: 14/08/2014, 18:22

... SEC_SIZE - 1]/SEC_SIZE and the size of the file in sectors. The file size in bytes is stored at the offset 1CH from the start of the directory entry at 0000:0500H. The number of sectors to load is ... access the disk. Rather than simply changing the address of the interrupt 1EH vector, the boot sector goes through a more complex procedure that allows the table...

Ngày tải lên: 14/08/2014, 18:22

... DOS 92 The Little Black Book of Computer Viruses VIRUS_START: call GET_START ;get start address ;This is a trick to determine the location of the start of the program. We put ;the address of GET_START ... point of view) if it infects the diskette even when the disk is full, and it will have to overwrite a file to infect the disk 84 The Little Black...

Ngày tải lên: 14/08/2014, 18:22

... enlarging it. 109 The Little Black Book of Computer Viruses :100 49000A2AF00FEC0A2FD00E8 0100 C3E8 5100 7356 :100 4A0004C803EFD0000743FFE0EFD00BFAF00BE5D :100 4B000AA00E8BB004757E8760075235F32C0AA60 :100 4C000BFAF00BB4F00A0FD00B22BF6E203D88BFC :100 4D000F3E89C0057E8C4FF7412E8760074DDFE70 :100 4E00006FD005F32C0AAB0010AC0C35F32C0C3BC :100 4F000BA0600B41ACD21BFAF00BEA300E870...

Ngày tải lên: 14/08/2014, 18:22

... as STEALTH.COM. The program disk has PUT programs for other formats, or you can modify PUT_360 to do it. 151 The Little Black Book of Computer Viruses Appendix F: The HEX File Loader The following ... call IS_HARD_THERE ;see if a hard disk exists here jz DONE ;no hard disk, all done booting 149 The Little Black Book of Computer Viruses mov ax,07FF7H stosw...

Ngày tải lên: 14/08/2014, 18:22