Sample viewer

vx.netlux.org/Virus.DOS.Gdynia.680

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GIF

Syscalls:

Time Syscall Op Syscall Name
2018-12-17T21:55:44.397055255Z 14 PC: 12ef8 | Set default drive (Drive = 'C')
2018-12-17T21:55:44.410865013Z 78 PC: 12f0f | Find first file
2018-12-17T21:55:44.416392345Z 47 PC: 12f19 | Get disk transfer address
2018-12-17T21:55:44.417537843Z 79 PC: 12f4c | Find next file
2018-12-17T21:55:44.420546903Z 42 PC: 12f58 | Get date 0x12f58: cmp dh, 2
0x12f5b: jb 0x12f7f
0x12f5d: nop
0x12f5e: nop
0x12f5f: nop
0x12f60: mov bx, word ptr cs:[0x101]
0x12f65: add bx, 0x155
0x12f69: mov dx, bx
0x12f6b: mov cx, 0x5c
0x12f6e: mov al, byte ptr cs:[bx]
0x12f71: xor al, cl
0x12f73: sub al, cl
0x12f75: mov byte ptr cs:[bx], al
0x12f78: inc bx
0x12f79: loop 0x12f6e
0x12f7b: mov ah, 9
0x12f7d: int 0x21
0x12f7f: popaw
0x12f80: ret
0x12f81: pushaw
2018-12-17T21:55:44.422677111Z 9 PC: 12f7f | Display string (String= ' Windows 95 may be dangerous. OS/2 is the best operating system! I`ll prove it soon... ')
2018-12-17T21:55:44.432090825Z 48 PC: 12a45 | Get DOS version
2018-12-17T21:55:44.434080708Z 25 PC: 12a55 | Get default drive
2018-12-17T21:55:44.435164792Z 9 PC: 12c57 | Display string (String= 'No filename specified ')
2018-12-17T21:55:44.439429373Z 14 PC: 12c60 | Set default drive (Drive = 'C')
2018-12-17T21:55:44.441557215Z 76 PC: 12c64 | Terminate with return code (Return code = '5')

{"DateBased":true,"Day":1,"Month":1,"Year":1980,"Hour":0,"Min":0,"Second":0,"TimeBased":false,"OriginalID":620,"SideJobID":0}

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GIF

Syscalls:

Time Syscall Op Syscall Name
2018-12-25T11:41:22.886264241Z 14 PC: 12ef8 | Set default drive (Drive = 'C')
2018-12-25T11:41:22.888006879Z 78 PC: 12f0f | Find first file
2018-12-25T11:41:22.89321048Z 47 PC: 12f19 | Get disk transfer address
2018-12-25T11:41:22.894165396Z 79 PC: 12f4c | Find next file
2018-12-25T11:41:22.897268785Z 42 PC: 12f58 | Get date 0x12f58: cmp dh, 2
0x12f5b: jb 0x12f7f
0x12f5d: nop
0x12f5e: nop
0x12f5f: nop
0x12f60: mov bx, word ptr cs:[0x101]
0x12f65: add bx, 0x155
0x12f69: mov dx, bx
0x12f6b: mov cx, 0x5c
0x12f6e: mov al, byte ptr cs:[bx]
0x12f71: xor al, cl
0x12f73: sub al, cl
0x12f75: mov byte ptr cs:[bx], al
0x12f78: inc bx
0x12f79: loop 0x12f6e
0x12f7b: mov ah, 9
0x12f7d: int 0x21
0x12f7f: popaw
0x12f80: ret
0x12f81: pushaw
2018-12-25T11:41:22.899346469Z 48 PC: 12a45 | Get DOS version
2018-12-25T11:41:22.900344586Z 25 PC: 12a55 | Get default drive
2018-12-25T11:41:22.901455462Z 9 PC: 12c57 | Display string (String= 'No filename specified ')
2018-12-25T11:41:22.905277488Z 14 PC: 12c60 | Set default drive (Drive = 'C')
2018-12-25T11:41:22.906185884Z 76 PC: 12c64 | Terminate with return code (Return code = '5')

{"DateBased":true,"Day":1,"Month":2,"Year":1980,"Hour":0,"Min":0,"Second":0,"TimeBased":false,"OriginalID":620,"SideJobID":0}

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GIF

Syscalls:

Time Syscall Op Syscall Name
2018-12-25T11:41:22.952693329Z 14 PC: 12ef8 | Set default drive (Drive = 'C')
2018-12-25T11:41:22.955638348Z 78 PC: 12f0f | Find first file
2018-12-25T11:41:22.962052729Z 47 PC: 12f19 | Get disk transfer address
2018-12-25T11:41:22.963679427Z 79 PC: 12f4c | Find next file
2018-12-25T11:41:22.966392979Z 42 PC: 12f58 | Get date 0x12f58: cmp dh, 2
0x12f5b: jb 0x12f7f
0x12f5d: nop
0x12f5e: nop
0x12f5f: nop
0x12f60: mov bx, word ptr cs:[0x101]
0x12f65: add bx, 0x155
0x12f69: mov dx, bx
0x12f6b: mov cx, 0x5c
0x12f6e: mov al, byte ptr cs:[bx]
0x12f71: xor al, cl
0x12f73: sub al, cl
0x12f75: mov byte ptr cs:[bx], al
0x12f78: inc bx
0x12f79: loop 0x12f6e
0x12f7b: mov ah, 9
0x12f7d: int 0x21
0x12f7f: popaw
0x12f80: ret
0x12f81: pushaw
2018-12-25T11:41:22.973329436Z 9 PC: 12f7f | Display string (String= ' Windows 95 may be dangerous. OS/2 is the best operating system! I`ll prove it soon... ')
2018-12-25T11:41:22.985600828Z 48 PC: 12a45 | Get DOS version
2018-12-25T11:41:22.987234429Z 25 PC: 12a55 | Get default drive
2018-12-25T11:41:22.993427033Z 9 PC: 12c57 | Display string (String= 'No filename specified ')
2018-12-25T11:41:22.99982115Z 14 PC: 12c60 | Set default drive (Drive = 'C')
2018-12-25T11:41:23.001682217Z 76 PC: 12c64 | Terminate with return code (Return code = '5')