Sample viewer

vx.netlux.org/Virus.DOS.VirDem.1542

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GIF

Syscalls:

Time Syscall Op Syscall Name
2018-12-17T23:04:23.52861498Z 25 PC: 12a79 | Get default drive
2018-12-17T23:04:23.530381728Z 71 PC: 12a8b | Get current directory
2018-12-17T23:04:23.5335396Z 14 PC: 12ab3 | Set default drive (Drive = 'C')
2018-12-17T23:04:23.534885299Z 59 PC: 12abb | Change current directory
2018-12-17T23:04:23.539297664Z 78 PC: 12b14 | Find first file
2018-12-17T23:04:23.54556544Z 79 PC: 12b27 | Find next file
2018-12-17T23:04:23.548230341Z 59 PC: 12ac6 | Change current directory
2018-12-17T23:04:23.55232186Z 78 PC: 12ad1 | Find first file
2018-12-17T23:04:23.558676254Z 47 PC: 12ae9 | Get disk transfer address
2018-12-17T23:04:23.560031069Z 59 PC: 12afd | Change current directory
2018-12-17T23:04:23.566999213Z 78 PC: 12b14 | Find first file
2018-12-17T23:04:23.578187795Z 61 PC: 12b32 | Open file (Filename = 'EDIT.COM')
2018-12-17T23:04:23.585554807Z 63 PC: 12b40 | Read file or device (Read 1486 bytes on handle 5)
2018-12-17T23:04:23.591700377Z 62 PC: 12b44 | Close file
2018-12-17T23:04:23.594966148Z 67 PC: 12b58 | Get or set file attributes
2018-12-17T23:04:23.601380784Z 67 PC: 12b62 | Get or set file attributes
2018-12-17T23:04:23.95368189Z 61 PC: 12b6b | Open file (Filename = 'EDIT.COM')
2018-12-17T23:04:23.961624608Z 87 PC: 12b73 | Get or set file date and time
2018-12-17T23:04:23.963200487Z 66 PC: 12b81 | Move file pointer
2018-12-17T23:04:23.964646669Z 66 PC: 12ccd | Move file pointer
2018-12-17T23:04:23.966622558Z 64 PC: 12b9d | Write file or device (Write 1486 bytes on handle 5)
2018-12-17T23:04:23.978265416Z 64 PC: 12bc4 | Write file or device (Write 56 bytes on handle 5)
2018-12-17T23:04:23.981316091Z 66 PC: 12c0c | Move file pointer
2018-12-17T23:04:23.983207183Z 64 PC: 12c18 | Write file or device (Write 1486 bytes on handle 5)
2018-12-17T23:04:23.991516337Z 87 PC: 12c20 | Get or set file date and time
2018-12-17T23:04:23.9932172Z 62 PC: 12c24 | Close file
2018-12-17T23:04:24.001965816Z 14 PC: 12cb7 | Set default drive (Drive = 'A')
2018-12-17T23:04:24.003603629Z 59 PC: 12cbf | Change current directory
2018-12-17T23:04:24.008471225Z 42 PC: 12c54 | Get date 0x12c54: mov ah, 0x2a
0x12c56: mov bl, byte ptr es:[0x422]
0x12c5b: mov dl, bl
0x12c5d: int 0x21
0x12c5f: mov ah, 0x2c
0x12c61: int 0x21
0x12c63: mov ah, 0xc
0x12c65: mov ah, 0x2a
0x12c67: int 0x21
0x12c69: or dl, 0x30
0x12c6c: and dl, bl
0x12c6e: cmp dl, al
0x12c70: jmp 0x12c99
0x12c72: mov bl, dl
0x12c74: mov ah, 0x2a
0x12c76: mov dl, 0x20
0x12c78: int 0x21
0x12c7a: mov dl, 0x3e
0x12c7c: int 0x21
0x12c7e: mov dl, bl
2018-12-17T23:04:24.011282626Z 42 PC: 12c5f | Get date 0x12c5f: mov ah, 0x2c
0x12c61: int 0x21
0x12c63: mov ah, 0xc
0x12c65: mov ah, 0x2a
0x12c67: int 0x21
0x12c69: or dl, 0x30
0x12c6c: and dl, bl
0x12c6e: cmp dl, al
0x12c70: jmp 0x12c99
0x12c72: mov bl, dl
0x12c74: mov ah, 0x2a
0x12c76: mov dl, 0x20
0x12c78: int 0x21
0x12c7a: mov dl, 0x3e
0x12c7c: int 0x21
0x12c7e: mov dl, bl
0x12c80: int 0x21
0x12c82: mov dl, 0x3c
0x12c84: int 0x21
0x12c86: mov ah, 0x2a
2018-12-17T23:04:24.014295515Z 44 PC: 12c63 | Get time 0x12c63: mov ah, 0xc
0x12c65: mov ah, 0x2a
0x12c67: int 0x21
0x12c69: or dl, 0x30
0x12c6c: and dl, bl
0x12c6e: cmp dl, al
0x12c70: jmp 0x12c99
0x12c72: mov bl, dl
0x12c74: mov ah, 0x2a
0x12c76: mov dl, 0x20
0x12c78: int 0x21
0x12c7a: mov dl, 0x3e
0x12c7c: int 0x21
0x12c7e: mov dl, bl
0x12c80: int 0x21
0x12c82: mov dl, 0x3c
0x12c84: int 0x21
0x12c86: mov ah, 0x2a
0x12c88: mov bx, 1
0x12c8b: mov cx, 0x3c
2018-12-17T23:04:24.016771442Z 42 PC: 12c69 | Get date 0x12c69: or dl, 0x30
0x12c6c: and dl, bl
0x12c6e: cmp dl, al
0x12c70: jmp 0x12c99
0x12c72: mov bl, dl
0x12c74: mov ah, 0x2a
0x12c76: mov dl, 0x20
0x12c78: int 0x21
0x12c7a: mov dl, 0x3e
0x12c7c: int 0x21
0x12c7e: mov dl, bl
0x12c80: int 0x21
0x12c82: mov dl, 0x3c
0x12c84: int 0x21
0x12c86: mov ah, 0x2a
0x12c88: mov bx, 1
0x12c8b: mov cx, 0x3c
0x12c8e: nop
0x12c8f: lea dx, word ptr [0x507]
0x12c93: int 0x21
2018-12-17T23:04:24.019292388Z 42 PC: 12ca8 | Get date 0x12ca8: mov ax, word ptr es:[0xfd00]
0x12cac: push ax
0x12cad: ret
0x12cae: mov ah, 0xe
0x12cb0: mov dl, byte ptr cs:[0x3e1]
0x12cb5: int 0x21
0x12cb7: mov ah, 0x3b
0x12cb9: lea dx, word ptr [0x3e2]
0x12cbd: int 0x21
0x12cbf: ret
0x12cc0: mov ah, 0x42
0x12cc2: mov al, 0
0x12cc4: mov dx, 0x5ce
0x12cc7: nop
0x12cc8: mov cx, 0
0x12ccb: int 0x21
0x12ccd: ret
0x12cce: add byte ptr [bx + di], al
0x12cd0: add byte ptr [si + 0x2a0c], bl
0x12cd4: arpl word ptr cs:[bx + 0x6d], bp
2018-12-17T23:04:24.022620133Z 9 PC: 13dc6 | Display string (String= 'Hello - Copyright S & S International, 1990 ')