Not something I intentionally wanted to test, but in experience working with Qradar in almost every single ; the regex engine would fail to capture for following given payload
rx ^%{tx.allowed_request_content_type}$
Given the text in bold payload writing regex to extract text in between special chars is NOT Possible at least in my own attempts. The payload extraction works here but you copy the same to extract property window it will FAIL.
Sample test.
EHLO h-67-102-43-6.nycm.ny.megapath.net
MAIL FROM: ameslano@heattreatmentchina.ru
RCPT TO:<hp_printer@test.gov.pk>
RCPT TO:<m.zafar@test.gov.pk>
RCPT TO:<poc@test.gov.pk>
DATA
Received: from (192.168.1.207) by heattreatmentchina.ru (67.102.43.6) with Microsoft SMTP Server id 8.0.685.24; Tue, 20 Aug 2013 08:47:14 -0500
Message-ID: <521370EC.205060@heattreatmentchina.ru
This regex will only match first extraction and fail at others. Such there is no way possible to extract to more then copy / matches.
<132>Sep 13 11:33:40 ossec-server ossec: Alert Level: 7; Rule: 50118 - Access attempt blocked by Mod Security.; Location: (WebServer) 10.10.81.169->/usr/local/apache2/logs/error_log; [Fri Sep 13 11:35:12.023246 2013] [:error] [pid 2668:tid 140049152734976] [client 10.10.80.21] ModSecurity: Access denied with code 403 (phase 1). Match of "rx ^%{tx.allowed_request_content_type}$" against "TX:0" required. [file "/usr/local/apache2/conf/modsecurity-crs/activated_rules/modsecurity_crs_30_http_policy.conf"] [line "64"] [id "960010"] [rev "2"] [msg "Request content type is not allowed by policy"] [data "application/octet-stream"] [severity "CRITICAL"] [ver "OWASP_CRS/2.2.8"] [maturity "9"] [accuracy "9"] [tag "OWASP_CRS/POLICY/ENCODING_NOT_ALLOWED"] [tag "WASCTC/WASC-20"] [tag "OWASP_TOP_10/A1"] [tag "OWASP_AppSensor/EE2"] [tag "PCI/12.1"] [hostname "test.solutions.com"] [uri "/"] [unique_id "UjKyIAoKUakAAApsvc4AAADA"]
rx ^%{tx.allowed_request_content_type}$
Given the text in bold payload writing regex to extract text in between special chars is NOT Possible at least in my own attempts. The payload extraction works here but you copy the same to extract property window it will FAIL.
Sample test.
EHLO h-67-102-43-6.nycm.ny.megapath.net
MAIL FROM: ameslano@heattreatmentchina.ru
RCPT TO:<hp_printer@test.gov.pk>
RCPT TO:<m.zafar@test.gov.pk>
RCPT TO:<poc@test.gov.pk>
DATA
Received: from (192.168.1.207) by heattreatmentchina.ru (67.102.43.6) with Microsoft SMTP Server id 8.0.685.24; Tue, 20 Aug 2013 08:47:14 -0500
Message-ID: <521370EC.205060@heattreatmentchina.ru
Regex:RCPT\sTO\:\s?\x3c(.*)(?=\x3e)This regex will only match first extraction and fail at others. Such there is no way possible to extract to more then copy / matches.
How to re-open closed offenses in QRadar?
ReplyDeleteReply
I don't think this can be done; a closed offense is purged from the offense table at the back-end DB (postgreSQL).
ReplyDeleteAlso, there is exists offense life-cycle (which is maximum 5 days) after which inactive offenses would be automatically purged or closed.
Thank you very much
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