Sample viewer

vx.netlux.org/Virus.DOS.NewAids.1041

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GIF

Syscalls:

Time Syscall Op Syscall Name
2018-12-17T21:51:51.602887485Z 47 PC: 12e7b | Get disk transfer address
2018-12-17T21:51:51.605681521Z 26 PC: 12e8e | Set disk transfer address
2018-12-17T21:51:51.607534365Z 42 PC: 12e9b | Get date 0x12e9b: cmp cx, 0x7ca
0x12e9f: jge 0x12ea4
0x12ea1: jmp 0x12ee7
0x12ea3: nop
0x12ea4: pop si
0x12ea5: push si
0x12ea6: mov ah, 0xe
0x12ea8: mov al, byte ptr [si - 0x119]
0x12eac: cmp al, 0
0x12eae: je 0x12ebe
0x12eb0: int 0x10
0x12eb2: inc si
0x12eb3: push cx
0x12eb4: mov cx, 0xffff
0x12eb7: or ax, ax
0x12eb9: loop 0x12eb7
0x12ebb: pop cx
0x12ebc: jmp 0x12ea6
0x12ebe: pop si
0x12ebf: push si

{"DateBased":true,"Day":1,"Month":1,"Year":1980,"Hour":0,"Min":0,"Second":0,"TimeBased":false,"OriginalID":183,"SideJobID":0}

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GIF

Syscalls:

Time Syscall Op Syscall Name
2018-12-25T11:40:20.206343779Z 47 PC: 12e7b | Get disk transfer address
2018-12-25T11:40:20.207654935Z 26 PC: 12e8e | Set disk transfer address
2018-12-25T11:40:20.209030121Z 42 PC: 12e9b | Get date 0x12e9b: cmp cx, 0x7ca
0x12e9f: jge 0x12ea4
0x12ea1: jmp 0x12ee7
0x12ea3: nop
0x12ea4: pop si
0x12ea5: push si
0x12ea6: mov ah, 0xe
0x12ea8: mov al, byte ptr [si - 0x119]
0x12eac: cmp al, 0
0x12eae: je 0x12ebe
0x12eb0: int 0x10
0x12eb2: inc si
0x12eb3: push cx
0x12eb4: mov cx, 0xffff
0x12eb7: or ax, ax
0x12eb9: loop 0x12eb7
0x12ebb: pop cx
0x12ebc: jmp 0x12ea6
0x12ebe: pop si
0x12ebf: push si
2018-12-25T11:40:20.210711695Z 78 PC: 12f6a | Find first file
2018-12-25T11:40:20.214654463Z 67 PC: 12fa9 | Get or set file attributes
2018-12-25T11:40:20.219510077Z 67 PC: 12fbb | Get or set file attributes
2018-12-25T11:40:20.232128291Z 61 PC: 12fc6 | Open file (Filename = 'SLEEP.COM')
2018-12-25T11:40:20.236606732Z 87 PC: 12fd4 | Get or set file date and time
2018-12-25T11:40:20.238286915Z 44 PC: 12fe0 | Get time 0x12fe0: and dh, 7
0x12fe3: mov ah, 0x3f
0x12fe5: mov cx, 3
0x12fe8: mov dx, 0xd
0x12feb: nop
0x12fec: add dx, si
0x12fee: int 0x21
0x12ff0: jb 0x13058
0x12ff2: push ax
0x12ff3: mov ax, word ptr [si + 0xd]
0x12ff6: nop
0x12ff7: cmp ax, 0x4d5a
0x12ffa: je 0x12fcb
0x12ffc: cmp ax, 0x5a4d
0x12fff: je 0x12fcb
0x13001: pop ax
0x13002: cmp ax, 3
0x13005: jne 0x13058
0x13007: mov ax, 0x4202
0x1300a: mov cx, 0
2018-12-25T11:40:20.240082794Z 63 PC: 12ff0 | Read file or device (Read 3 bytes on handle 5)
2018-12-25T11:40:20.244283947Z 66 PC: 13012 | Move file pointer
2018-12-25T11:40:20.246208518Z 64 PC: 12e56 | Write file or device (Write 1041 bytes on handle 5)
2018-12-25T11:40:20.252128842Z 66 PC: 13049 | Move file pointer
2018-12-25T11:40:20.256981069Z 64 PC: 13058 | Write file or device (Write 3 bytes on handle 5)
2018-12-25T11:40:20.265424638Z 87 PC: 1306b | Get or set file date and time
2018-12-25T11:40:20.267459256Z 62 PC: 1306f | Close file
2018-12-25T11:40:20.276722812Z 67 PC: 1307e | Get or set file attributes
2018-12-25T11:40:20.288202201Z 26 PC: 1308b | Set disk transfer address

{"DateBased":true,"Day":1,"Month":1,"Year":1994,"Hour":0,"Min":0,"Second":0,"TimeBased":false,"OriginalID":183,"SideJobID":0}

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GIF

Syscalls:

Time Syscall Op Syscall Name
2018-12-25T11:40:20.203663829Z 47 PC: 12e7b | Get disk transfer address
2018-12-25T11:40:20.205211589Z 26 PC: 12e8e | Set disk transfer address
2018-12-25T11:40:20.206300369Z 42 PC: 12e9b | Get date 0x12e9b: cmp cx, 0x7ca
0x12e9f: jge 0x12ea4
0x12ea1: jmp 0x12ee7
0x12ea3: nop
0x12ea4: pop si
0x12ea5: push si
0x12ea6: mov ah, 0xe
0x12ea8: mov al, byte ptr [si - 0x119]
0x12eac: cmp al, 0
0x12eae: je 0x12ebe
0x12eb0: int 0x10
0x12eb2: inc si
0x12eb3: push cx
0x12eb4: mov cx, 0xffff
0x12eb7: or ax, ax
0x12eb9: loop 0x12eb7
0x12ebb: pop cx
0x12ebc: jmp 0x12ea6
0x12ebe: pop si
0x12ebf: push si