vtrace_scripts/simpleFuzz.py at master · pdasilva/vtrace_scripts · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
import sys
import os

import time
import threading

# Change this to your vdb path
VDB_ROOT = ""
sys.path.append(VDB_ROOT)

import vtrace
import vdb
from envi.archs.i386 import *

# Hard coded for IE
exepath = "C:\Program Files (x86)\Internet Explorer\iexplore.exe"

#######################################################################
def getOpCode(trace, eip):
    s = trace.readMemory(eip,15)
    op1 = trace.makeOpcode(s, 0, eip)
    return op1

def printInfo(trace):
    # print ("DIR: %s") % (dir(trace))

    # print("META: %s") % (trace.metadata)
    eip = trace.getRegisterByName("eip")


    dis = getOpCode(trace, trace.getRegister(REG_EIP))
    disLen = len(dis)
    opcode = trace.readMemory(eip, len(dis))

    es = trace.getRegisterByName("es")
    ds = trace.getRegisterByName("ds")
    cs = trace.getRegisterByName("cs")

    ef = trace.getRegisterByName("eflags")

    edi = trace.getRegister(REG_EDI)
    esi = trace.getRegister(REG_ESI)
    esp = trace.getRegister(REG_ESP)

    print "[*] Bestname: ", trace.getSymByAddr(eip, exact=False)
    print "%16s: %s" % ("EIP", hex(eip))

    print "%16s: %s" % ("DIS", dis)
    print "%16s: %s" % ("OPCODE", repr(opcode))
    print "%16s: %s" % ("ES", es)
    print "%16s: %s" % ("DS", ds)
    print "%16s: %s" % ("CS", cs)
    print "%16s: %s" % ("EAX", hex(trace.getRegister(REG_EAX)))
    print "%16s: %s" % ("EBX", hex(trace.getRegister(REG_EBX)))
    print "%16s: %s" % ("ECX", hex(trace.getRegister(REG_ECX)))
    print "%16s: %s" % ("EDX", hex(trace.getRegister(REG_EDX)))

    print "%16s: %s" % ("EDI", hex(edi))
    print "%16s: %s" % ("ESI", hex(esi))

    print "%16s: %s" % ("ESP", hex(esp))
    print "%16s: %s" % ("[ESP]", repr(trace.readMemory(esp, 4)))

    print("%16s: %s" % ("Direction", bool(ef & EFLAGS_DF)))


#######################################################################
def load_binary(trace, filepath, base=None):
    global exepath

    # If attempting to attach to a 64 bit process
    # 64 bit python is required.
    # sample cmdline: C:\Program Files (x86)\Internet Explorer\iexplore.exe C:\test\ie\index_0.html
    cmdline = exepath + " " + filepath
    trace.execute(cmdline)

    print("Executing: %s") % (cmdline)
    # Start the program executing
    trace.run()

######################################################################
def main(argv):
    global exepath

    if len(argv) != 2:
        print "Usage: %s <test files>" % sys.argv[0]
        sys.exit(1)

    # verify that the path to test files is valid
    filepath = sys.argv[1]
    if os.path.isdir(filepath) == False:
        sys.exit("Invalid Input Directory")

    # Get the current vtrace object
    trace = vtrace.getTrace()

    threads = []
    crashes = []
    count = 1
    print ("[*] Starting fuzz process")

    # call load_binary on the filenames stored in the directory
    for fname in os.listdir(filepath):
        #print fname
        cmdline = filepath + "\\" + fname

        t = threading.Thread(target = load_binary, args = (trace, cmdline,))
        threads.append(t)
        t.start()
        time.sleep(10)
        if trace.isRunning():
            trace.sendBreak()
            printInfo(trace)

            print ("[*] Death to the process %d") % (trace.getPid())
            trace.kill()
        else:
            print ("[*] %s crashed") % (fname)
        time.sleep(1)
        count += 1

    print ("")
    print ("[*] Death to all %d of %d processes") % ( (count-len(crashes)), count )
    print ("[*] %d files caused crashes") % (len(crashes))
    for i in crashes:
        print ("\t filename: %s") % (i)

if __name__ == "__main__":
    main(sys.argv)
    sys.exit(0)