aws-email-check: only report ban-risk mails (suspension/abuse/suspicious activity)

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
This commit is contained in:
2026-10-23 15:42:51 +08:00
co-authored by Claude Sonnet 5.5
parent 5db6f351cd
commit ce0eaa9e95
3 changed files with 256 additions and 113 deletions
+194 -110
View File
@@ -64,16 +64,11 @@ class ExtractionTests(unittest.TestCase):
self.assertEqual(record["action"], check_mail.EMPTY)
self.assertEqual(record["deadline"], check_mail.EMPTY)
def test_identity_verification_footer_does_not_imply_compromise(self):
record = synthetic(
def test_identity_verification_footer_is_not_ban_alert(self):
self.assertIsNone(synthetic(
"验证您的身份",
"AWS 身份验证通知。为保护您的安全,如果您发现未授权访问,请联系支持团队。",
)
self.assertEqual(record["type"], "身份验证通知")
self.assertEqual(record["warning"], check_mail.EMPTY)
self.assertEqual(record["action"], check_mail.EMPTY)
self.assertEqual(record["account"], check_mail.EMPTY)
self.assertEqual(record["deadline"], check_mail.EMPTY)
))
def test_specific_subject_outweighs_quoted_phishing_report(self):
record = synthetic(
@@ -83,91 +78,180 @@ class ExtractionTests(unittest.TestCase):
)
self.assertEqual(record["type"], "账户验证或暂停")
def test_local_forwarded_login_code_is_filtered(self):
self.assertIsNone(sample("*FW__*.eml", "过滤邮件"))
def test_local_forwarded_access_validated_notice_is_filtered(self):
self.assertIsNone(sample("*Resources_Has_Been_Validated.eml", "过滤邮件"))
def test_access_validated_notices_are_filtered(self):
cases = [
("您访问 AWS 资源的请求已得到验证", "您的 AWS 资源访问请求已完成核验,现在可以访问资源。", False),
("AWS: Your Request For Accessing AWS Resources Has Been Validated",
"The request is complete. You may access AWS resources.", False),
("Fw: 您访问 AWS 资源的请求已得到验证 / "
"Your Request For Accessing AWS Resources Has Been Validated",
"AWS 资源访问现已恢复。如果您有任何问题,请联系支持。", False),
("Fwd: AWS notification", "Forwarded message:\nSubject: Your Request For Accessing "
"AWS Resources Has Been Validated\nYou may access resources again.", False),
("FW: AWS notification", "<div>Your Request For Accessing</div><p>AWS Resources "
"Has Been Successfully Validated</p><p>You may access AWS resources.</p>", True),
("Fw: AWS 通知", "<p>您访问 AWS 资源的请求已得到验证</p><p>现在可以访问资源。</p>", True),
]
for subject, body, rich in cases:
with self.subTest(subject=subject, rich=rich):
self.assertIsNone(synthetic(subject, body, rich))
def test_success_notice_does_not_hide_actual_risk_or_required_documents(self):
success = "Your Request For Accessing AWS Resources Has Been Validated"
risks = [
"Your AWS account has been suspended.",
"Your AWS account is restricted.",
"Your AWS account is disabled.",
"Your AWS account has been terminated.",
"Your AWS account is closed.",
"Your access key has been compromised.",
"Your AWS resource has been implicated in hosting a phishing website.",
"We detected potentially unwanted activity in your AWS account.",
"Please upload your identity documents.",
"If you fail to respond, your account will be suspended.",
"您的 AWS 账户已受限。",
"您的账户已暂停。请提交身份证明材料。",
]
for body in risks:
with self.subTest(body=body):
self.assertIsNotNone(synthetic(success, body))
for subject in ("AWS Abuse Report", "AWS Suspicious Activity", "AWS Account Permanent Closure Confirmation"):
with self.subTest(subject=subject):
self.assertIsNotNone(synthetic(subject, success))
def test_other_validation_notices_remain_reported(self):
cases = [
("AWS Identity Validated", "Contact support regarding your identity verification."),
("AWS 验证您的身份", "请上传身份证核验材料。"),
("Your Request For Accessing AWS Resources Has Not Been Validated",
"We could not validate important details. Please upload proof of identity."),
("AWS notification", "Your Request For Accessing AWS Resources Has Been Validated? "
"Your account has been placed on hold."),
]
for subject, body in cases:
with self.subTest(subject=subject):
self.assertIsNotNone(synthetic(subject, body))
def test_access_success_keeps_explicit_resource_risk_actions(self):
subject = "Your Request For Accessing AWS Resources Has Been Validated"
cases = [
"Please take action immediately to remove phishing content from your AWS resource.",
"Please delete malicious content hosted on your AWS resource.",
"You must stop abusive traffic from your AWS resource.",
"请立即删除您的 AWS 资源上的钓鱼内容。",
"必须停止 AWS 资源上的滥用行为。",
]
for body in cases:
with self.subTest(body=body):
self.assertIsNotNone(synthetic(subject, body))
def test_access_success_security_tips_are_still_filtered(self):
subject = "Your Request For Accessing AWS Resources Has Been Validated"
cases = [
"If you find phishing content, please remove phishing content from your AWS resource.",
"If you have questions, please take action to contact AWS support.",
"如果您发现钓鱼内容,请立即删除 AWS 资源上的钓鱼内容。",
"如果您有任何问题,请联系支持团队。",
"Please contact AWS support if you need help accessing resources.",
]
for body in cases:
with self.subTest(body=body):
self.assertIsNone(synthetic(subject, body))
def test_local_forwarded_login_code_is_filtered(self):
self.assertIsNone(sample("*FW__*.eml", "过滤邮件"))
def test_local_forwarded_access_validated_notice_is_filtered(self):
self.assertIsNone(sample("*Resources_Has_Been_Validated.eml", "过滤邮件"))
def test_local_forwarded_domain_expiration_notice_is_filtered(self):
self.assertIsNone(sample("*Domain_expiring*.eml", "过滤邮件"))
def test_domain_expiration_notices_are_filtered(self):
cases = [
("Fw:[Domain expiring] Registration for example.net expires on 2027-02-11",
"Dear AWS customer, you have disabled automatic annual renewal for this domain.", False),
("FWD: [DOMAIN EXPIRING] Registration for other.org expires on 2028-04-09",
"AWS domain registration verification: automatic renewal is disabled.", False),
("AWS notification", "Forwarded message:\nSubject: Registration for example.net "
"expires on 2027-02-11\nAutomatic renewal is disabled.", False),
("FW: AWS notification", "<div>Domain Expiring Soon</div><p>Your domain is "
"scheduled to expire. Automatic annual renewal is disabled.</p>", True),
("转发:AWS 域名到期提醒", "您的域名即将到期,自动续费已停用。", False),
("AWS 通知", "<p>域名注册将于 2027-02-11 到期</p><p>自动续费已停用。</p>", True),
]
for subject, body, rich in cases:
with self.subTest(subject=subject, rich=rich):
self.assertIsNone(synthetic(subject, body, rich))
def test_domain_renewal_business_states_are_filtered(self):
cases = [
("AWS domain renewal failed", "Automatic renewal is disabled. "
"The domain has been suspended because its registration expired."),
("AWS domain renewal reminder", "Your domain is disabled after expiration. "
"Payment verification failed; please renew its registration."),
("AWS 域名续费失败", "域名已暂停解析,域名注册已关闭。请重新验证续费付款信息。"),
("AWS domain renewal failed", "We could not charge your AWS account "
"before the domain was suspended due to registration expiry."),
("AWS 域名到期提醒", "您的 AWS 账户未扣款而域名已暂停。"),
("[Domain expiring] AWS registration notice", "If your AWS account is suspended, "
"please contact support. Automatic annual renewal is disabled."),
]
for subject, body in cases:
with self.subTest(subject=subject):
self.assertIsNone(synthetic(subject, body))
def test_domain_expiration_does_not_hide_actual_account_or_resource_risk(self):
subject = "[Domain expiring] Registration for example.net expires on 2027-02-11"
risks = [
"Your AWS account has been suspended.",
"Your AWS account has been suspended and your domain is disabled.",
"Your AWS account associated with this domain is suspended.",
"Your AWS account for this domain is suspended.",
"Your AWS account is restricted.",
"Your AWS account is disabled.",
"Your AWS account has been terminated.",
"Your AWS account is closed.",
"Your access key has been compromised. AWS security notification.",
"Your AWS resource has been implicated in hosting a phishing website.",
"We detected potentially unwanted activity in your AWS account.",
"AWS verification: Please upload your identity documents.",
"AWS: If you fail to respond, your account will be suspended.",
"您的 AWS 账户已受限。",
"您的 AWS 账户已暂停。请提交身份证明材料。",
"AWS: Please delete malicious content hosted on your resource.",
]
for body in risks:
with self.subTest(body=body):
self.assertIsNotNone(synthetic(subject, body))
for risk_subject in ("AWS Abuse Report", "AWS Suspicious Activity",
"AWS Account Permanent Closure Confirmation"):
with self.subTest(subject=risk_subject):
self.assertIsNotNone(synthetic(risk_subject, subject))
def test_generic_verification_and_expiry_notices_are_not_ban_alerts(self):
cases = [
("AWS identity verification", "Your verification session expires on 2027-02-11."),
("AWS domain security verification", "Verify your domain ownership."),
("AWS renewal verification", "Please verify your billing information."),
("AWS 域名验证", "请验证域名所有权。"),
("AWS certificate verification required", "Your SSL certificate for domain example.com "
"expires on 2026-10-17. Please renew the certificate."),
("AWS credentials verification required", "Your credentials for domain example.com "
"expire on 2026-10-17. Please rotate credentials."),
("AWS certificate verification required", "Your domain certificate expires on "
"2026-10-17. Please renew the certificate."),
("AWS certificate verification required", "Your certificate for your domain "
"example.com expires on 2026-10-17. Please renew the certificate."),
("AWS certificate verification", "Registration for certificate expires on "
"2026-10-17. Please renew the certificate."),
("AWS certificate verification", "Your certificate registration for example.com "
"expires on 2026-10-17. Please renew the certificate."),
("AWS 证书风险通知", "域名 example.com 的 SSL 证书将于 2026-10-17 到期,请更新证书。"),
("AWS 凭据风险通知", "域名 example.com 的登录凭据将于 2026-10-17 到期,请更新凭据。"),
]
for subject, body in cases:
with self.subTest(subject=subject):
self.assertIsNone(synthetic(subject, body))
def test_access_validated_notices_are_filtered(self):
cases = [
("您访问 AWS 资源的请求已得到验证", "您的 AWS 资源访问请求已完成核验,现在可以访问资源。", False),
("AWS: Your Request For Accessing AWS Resources Has Been Validated",
"The request is complete. You may access AWS resources.", False),
("Fw: 您访问 AWS 资源的请求已得到验证 / "
"Your Request For Accessing AWS Resources Has Been Validated",
"AWS 资源访问现已恢复。如果您有任何问题,请联系支持。", False),
("Fwd: AWS notification", "Forwarded message:\nSubject: Your Request For Accessing "
"AWS Resources Has Been Validated\nYou may access resources again.", False),
("FW: AWS notification", "<div>Your Request For Accessing</div><p>AWS Resources "
"Has Been Successfully Validated</p><p>You may access AWS resources.</p>", True),
("Fw: AWS 通知", "<p>您访问 AWS 资源的请求已得到验证</p><p>现在可以访问资源。</p>", True),
]
for subject, body, rich in cases:
with self.subTest(subject=subject, rich=rich):
self.assertIsNone(synthetic(subject, body, rich))
def test_success_notice_does_not_hide_actual_risk_or_required_documents(self):
success = "Your Request For Accessing AWS Resources Has Been Validated"
risks = [
"Your AWS account has been suspended.",
"Your AWS account is restricted.",
"Your AWS account is disabled.",
"Your AWS account has been terminated.",
"Your AWS account is closed.",
"Your access key has been compromised.",
"Your AWS resource has been implicated in hosting a phishing website.",
"We detected potentially unwanted activity in your AWS account.",
"Please upload your identity documents.",
"If you fail to respond, your account will be suspended.",
"您的 AWS 账户已受限。",
"您的账户已暂停。请提交身份证明材料。",
]
for body in risks:
with self.subTest(body=body):
self.assertIsNotNone(synthetic(success, body))
for subject in ("AWS Abuse Report", "AWS Suspicious Activity", "AWS Account Permanent Closure Confirmation"):
with self.subTest(subject=subject):
self.assertIsNotNone(synthetic(subject, success))
def test_other_validation_notices_remain_reported(self):
cases = [
("AWS 验证您的身份", "请上传身份证核验材料。"),
("Your Request For Accessing AWS Resources Has Not Been Validated",
"We could not validate important details. Please upload proof of identity."),
("AWS notification", "Your Request For Accessing AWS Resources Has Been Validated? "
"Your account has been placed on hold."),
]
for subject, body in cases:
with self.subTest(subject=subject):
self.assertIsNotNone(synthetic(subject, body))
def test_access_success_keeps_explicit_resource_risk_actions(self):
subject = "Your Request For Accessing AWS Resources Has Been Validated"
cases = [
"Please take action immediately to remove phishing content from your AWS resource.",
"Please delete malicious content hosted on your AWS resource.",
"You must stop abusive traffic from your AWS resource.",
"请立即删除您的 AWS 资源上的钓鱼内容。",
"必须停止 AWS 资源上的滥用行为。",
]
for body in cases:
with self.subTest(body=body):
self.assertIsNotNone(synthetic(subject, body))
def test_access_success_security_tips_are_still_filtered(self):
subject = "Your Request For Accessing AWS Resources Has Been Validated"
cases = [
"If you find phishing content, please remove phishing content from your AWS resource.",
"If you have questions, please take action to contact AWS support.",
"如果您发现钓鱼内容,请立即删除 AWS 资源上的钓鱼内容。",
"如果您有任何问题,请联系支持团队。",
"Please contact AWS support if you need help accessing resources.",
]
for body in cases:
with self.subTest(body=body):
self.assertIsNone(synthetic(subject, body))
def test_login_codes_with_security_boilerplate_are_filtered(self):
cases = [
@@ -212,12 +296,12 @@ class ExtractionTests(unittest.TestCase):
cases = [
("AWS verification code", "Your verification code is 987654. Use this code to sign in.\n"
"If you think your access key has been compromised, change your password and enable MFA."),
("AWS 验证码", "您的验证码是 987654,用于登录。\n如果您的账户已暂停,请联系支持。"),
("AWS verification code", "Your verification code is 987654. Use this code to sign in. "
"If your account is suspended, please submit identity documents to support."),
("AWS verification code", "Your verification code is 987654. Use this code to sign in. "
"If you need help, please provide identity documents to support."),
("AWS 验证码", "验证码 987654,用于登录。如果您需要帮助,请提交身份证材料给支持团队。"),
("AWS 验证码", "您的验证码是 987654,用于登录。\n如果您的账户已暂停,请联系支持。"),
("AWS verification code", "Your verification code is 987654. Use this code to sign in. "
"If your account is suspended, please submit identity documents to support."),
("AWS verification code", "Your verification code is 987654. Use this code to sign in. "
"If you need help, please provide identity documents to support."),
("AWS 验证码", "验证码 987654,用于登录。如果您需要帮助,请提交身份证材料给支持团队。"),
]
for subject, body in cases:
with self.subTest(subject=subject):
@@ -239,12 +323,12 @@ class ExtractionTests(unittest.TestCase):
("AWS verification code", english_code +
"If you do not upload documents by 2026-10-10, your account will be suspended."),
("AWS 验证码", "验证码 987654,用于登录。如果您未能在截止日期回复您的账号将被暂停。"),
("AWS verification code", english_code +
"Your access key has been compromised. If your account is suspended, contact support."),
("AWS verification code", english_code +
"If you need help, please provide identity documents to support, your account has been suspended."),
("AWS verification code", english_code +
"If you need help, please provide identity documents to support. Please upload proof of identity."),
("AWS verification code", english_code +
"Your access key has been compromised. If your account is suspended, contact support."),
("AWS verification code", english_code +
"If you need help, please provide identity documents to support, your account has been suspended."),
("AWS verification code", english_code +
"If you need help, please provide identity documents to support. Please upload proof of identity."),
]
for subject, body in cases:
with self.subTest(subject=subject, body=body):
@@ -266,13 +350,13 @@ class ExtractionTests(unittest.TestCase):
self.assertEqual(report.splitlines(), ["【AWS账号风控邮件】", "风险类型:账户验证或暂停",
"截止时间:2026-10-10"])
def test_complete_report_keeps_field_order(self):
def test_complete_report_keeps_field_order(self):
record = synthetic("AWS Account on Hold: Response Required",
"AWS Account ID: 123456789012\nYour account has been placed on hold.\n"
"Resource i-12345678\nPlease reply before 2026-10-10.")
self.assertEqual(record["account"], "123456789012")
self.assertEqual(record["resources"], "i-12345678")
report = check_mail.format_report(record, ZoneInfo("Asia/Shanghai"))
"Resource i-12345678\nPlease reply before 2026-10-10.")
self.assertEqual(record["account"], "123456789012")
self.assertEqual(record["resources"], "i-12345678")
report = check_mail.format_report(record, ZoneInfo("Asia/Shanghai"))
self.assertEqual([line.split(":", 1)[0] for line in report.splitlines()],
["【AWS账号风控邮件】", "收件时间", "邮件主题", "AWS账号ID", "风险类型",
"警告信息", "涉及资源", "要求操作", "截止时间"])