Sample viewer

vx.netlux.org/Virus.DOS.Dropper.VCL_MUT

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GIF

Syscalls:

Time Syscall Op Syscall Name
2018-12-17T23:03:07.693050705Z 47 PC: 12a5f | Get disk transfer address
2018-12-17T23:03:07.694882306Z 26 PC: 12a67 | Set disk transfer address
2018-12-17T23:03:07.696813375Z 71 PC: 12ae8 | Get current directory
2018-12-17T23:03:07.700672876Z 59 PC: 12af0 | Change current directory
2018-12-17T23:03:07.70576317Z 47 PC: 12b05 | Get disk transfer address
2018-12-17T23:03:07.707728753Z 26 PC: 12b13 | Set disk transfer address
2018-12-17T23:03:07.7092548Z 78 PC: 12b1e | Find first file
2018-12-17T23:03:07.716210509Z 79 PC: 12b46 | Find next file
2018-12-17T23:03:07.723628276Z 79 PC: 12b46 | Find next file
2018-12-17T23:03:07.726570414Z 79 PC: 12b46 | Find next file
2018-12-17T23:03:07.729369012Z 79 PC: 12b46 | Find next file
2018-12-17T23:03:07.733296551Z 79 PC: 12b46 | Find next file
2018-12-17T23:03:07.736243238Z 79 PC: 12b46 | Find next file
2018-12-17T23:03:07.739255938Z 79 PC: 12b46 | Find next file
2018-12-17T23:03:07.742704066Z 79 PC: 12b46 | Find next file
2018-12-17T23:03:07.74600064Z 79 PC: 12b46 | Find next file
2018-12-17T23:03:07.748609742Z 47 PC: 12b6a | Get disk transfer address
2018-12-17T23:03:07.750287735Z 26 PC: 12b7a | Set disk transfer address
2018-12-17T23:03:07.7525523Z 78 PC: 12b82 | Find first file
2018-12-17T23:03:07.759964656Z 47 PC: 12bc6 | Get disk transfer address
2018-12-17T23:03:07.761373042Z 61 PC: 12bdf | Open file (Filename = 'SLEEP.COM')
2018-12-17T23:03:07.770104728Z 63 PC: 12beb | Read file or device (Read 3 bytes on handle 5)
2018-12-17T23:03:07.776908602Z 66 PC: 12bf3 | Move file pointer
2018-12-17T23:03:07.778558522Z 62 PC: 12bf8 | Close file
2018-12-17T23:03:07.781858442Z 67 PC: 12c18 | Get or set file attributes
2018-12-17T23:03:07.800781535Z 61 PC: 12c1d | Open file (Filename = 'SLEEP.COM')
2018-12-17T23:03:07.808378699Z 64 PC: 12c29 | Write file or device (Write 3 bytes on handle 5)
2018-12-17T23:03:07.81239766Z 66 PC: 12c31 | Move file pointer
2018-12-17T23:03:07.814230844Z 64 PC: 12c3c | Write file or device (Write 609 bytes on handle 5)
2018-12-17T23:03:07.822966948Z 87 PC: 12c47 | Get or set file date and time
2018-12-17T23:03:07.825861376Z 62 PC: 12c4b | Close file
2018-12-17T23:03:07.834147685Z 67 PC: 12c58 | Get or set file attributes
2018-12-17T23:03:07.845209789Z 26 PC: 12b94 | Set disk transfer address
2018-12-17T23:03:07.847220357Z 26 PC: 12b56 | Set disk transfer address
2018-12-17T23:03:07.849139523Z 59 PC: 12afa | Change current directory
2018-12-17T23:03:07.85138432Z 42 PC: 12c69 | Get date 0x12c69: mov al, dl
0x12c6b: cwde
0x12c6c: ret
0x12c6d: push ax
0x12c6e: popaw
0x12c6f: je 0x12ce3
0x12c71: imul sp, word ptr [bp + di + 0x69], 0x2c61
0x12c76: and byte ptr [bx + di + 0x74], ch
0x12c79: daa
0x12c7a: jae 0x12c9c
0x12c7c: inc sp
0x12c7d: inc cx
0x12c7e: inc sp
0x12c7f: and byte ptr [bp + 0x69], dh
0x12c82: jb 0x12cf9
0x12c84: jae 0x12cb2
0x12c86: and byte ptr [bp + 0x6f], ch
0x12c89: je 0x12cab
0x12c8b: inc sp
0x12c8c: popaw
2018-12-17T23:03:07.854232621Z 26 PC: 12ac8 | Set disk transfer address