mmpi，是一款使用python实现的开源邮件快速检测工具库，基于community框架设计开发。mmpi支持对邮件头、邮件正文、邮件附件的解析检测，并输出json检测报告。
mmpi，代码项目地址：https://github.com/a232319779/mmpi，pypi项目地址https://pypi.org/project/mmpi/
mmpi，邮件快速检测工具库检测逻辑：
mmpi的分析判定检测前提：邮件系统环境。脱离邮件环境上下文，检测规则的依据就不可靠了。
备注：windows安装yara-python，可以从这里下载
mmpi完全基于python开发，使用python原生email、html、zip库进行解析，基于oletool做定制化修改，支持对office文档和rtf文档的解析，再结合yara实现对其他文件的检测。
检测规则：压缩包中文件名以.exe结尾，并且中间插入20个以上空格的
检测规则：压缩包中同时存在exe和dll文件
检测规则：RTF文档中存在OLE对象，并且class_name是OLE2Link或者以equation开头
结果说明：邮件包含漏洞利用的RTF文档，属于恶意邮件。
$ pip install mmpi
$ mmpi-run $email_path
from mmpi import mmpi
def main():
emp = mmpi()
emp.parse('test.eml')
report = emp.get_report()
print(report)
if __name__ == "__main__":
main()
from mmpi import mmpi
def main():
emp = mmpi()
emp.parse('test.eml')
report = emp.get_report()
print(report)
if __name__ == "__main__":
main()
{
// 固定字段
"headers": [],
"body": [],
"attachments": [],
"signatures": []
// 动态字段
"vba": [],
"rtf": [],
}
{
// 固定字段
"headers": [],
"body": [],
"attachments": [],
"signatures": []
// 动态字段
"vba": [],
"rtf": [],
}
.
├── mmpi
│ ├── common
│ ├── core
│ ├── data
│ │ ├── signatures
│ │ │ ├── eml
│ │ │ ├── html
│ │ │ ├── ole
│ │ │ ├── other
│ │ │ ├── rtf
│ │ │ └── zip
│ │ ├── white
│ │ └── yara
│ │ ├── exe
│ │ ├── pdf
│ │ └── vba
│ └── processing
└── tests
└── samples
.
├── mmpi
│ ├── common
│ ├── core
│ ├── data
│ │ ├── signatures
│ │ │ ├── eml
│ │ │ ├── html
│ │ │ ├── ole
│ │ │ ├── other
│ │ │ ├── rtf
│ │ │ └── zip
│ │ ├── white
│ │ └── yara
│ │ ├── exe
│ │ ├── pdf
│ │ └── vba
│ └── processing
└── tests
└── samples
class PEFakeDocument(Signature):
authors = ["ddvv"]
sig_type = 'zip'
name = "pe_fake_document"
severity = 9
description = "PE File Fake Document"
def on_complete(self):
results = self.get_results()
for result in results:
if result.get('type', '') == self.sig_type:
infos = result.get('value', {}).get('infos', [])
for info in infos:
file_type = info.get('type')
file_name = info.get('name')
space_count = file_name.count(' ')
if 'exe' == file_type and space_count > 20:
self.mark(type="zip", tag=self.name, data=info.get('name'))
return self.has_marks()
return None
class PEFakeDocument(Signature):
authors = ["ddvv"]
sig_type = 'zip'
name = "pe_fake_document"
severity = 9
description = "PE File Fake Document"
def on_complete(self):
results = self.get_results()
for result in results:
if result.get('type', '') == self.sig_type:
infos = result.get('value', {}).get('infos', [])
for info in infos:
file_type = info.get('type')
file_name = info.get('name')
space_count = file_name.count(' ')
if 'exe' == file_type and space_count > 20:
self.mark(type="zip", tag=self.name, data=info.get('name'))
return self.has_marks()
return None
class DLLHijacking(Signature):
authors = ["ddvv"]
sig_type = 'zip'
name = "dll_hijacking"
severity = 9
description = "DLL Hijacking"
def on_complete(self):
results = self.get_results()
for result in results:
if result.get('type', '') == self.sig_type:
infos = result.get('value', {}).get('infos', [])
file_types = [info.get('type') for info in infos]
if set(['exe', 'dll']).issubset(file_types):
self.mark(type="zip", tag=self.name)
return self.has_marks()
return None
class DLLHijacking(Signature):
authors = ["ddvv"]
sig_type = 'zip'
name = "dll_hijacking"
severity = 9
description = "DLL Hijacking"
def on_complete(self):
results = self.get_results()
for result in results:
if result.get('type', '') == self.sig_type:
infos = result.get('value', {}).get('infos', [])
file_types = [info.get('type') for info in infos]
if set(['exe', 'dll']).issubset(file_types):
self.mark(type="zip", tag=self.name)
return self.has_marks()
return None
class RTFExploitDetected(Signature):
authors = ["ddvv"]
sig_type = 'rtf'
name = "rtf_exploit_detected"
severity = 9
description = "RTF Exploit Detected"
def on_complete(self):
results = self.get_results()
for result in results:
if result.get('type', '') == self.sig_type:
infos = result.get('value', {}).get('infos', [])
for info in infos:
if info.get('is_ole', False):
class_name = info.get('class_name', '')
if class_name == 'OLE2Link' or class_name.lower().startswith('equation'):
self.mark(type="rtf", tag=self.name)
return self.has_marks()
return None
class RTFExploitDetected(Signature):
authors = ["ddvv"]
sig_type = 'rtf'
name = "rtf_exploit_detected"
severity = 9
description = "RTF Exploit Detected"
def on_complete(self):
results = self.get_results()
for result in results:
if result.get('type', '') == self.sig_type:
infos = result.get('value', {}).get('infos', [])
for info in infos:
if info.get('is_ole', False):
class_name = info.get('class_name', '')
if class_name == 'OLE2Link' or class_name.lower().startswith('equation'):
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