Hi Fredrik,

here an example of decoding allow/block events (with the option 
*after_regex*):


<!--
pattern:
Mar 29 09:04:21 127.0.0.1 Mar 29 8:52:29 st4600fw01n1 Text
-->
<decoder name="Checkpoint-test">
  <prematch>^\w\w\w \d+ \d+:\d+:\d+ \S+ </prematch>
  <type>firewall</type>
</decoder>


<!--
Mar 30 09:03:56 127.0.0.1 Mar 30 8:52:05 st4600fw01n1 allow <eth6 mail src: 
192.168.5.133; dst: 89.208.212.2; proto: tcp; bytes: 2396; sent_bytes: 
1180; received_bytes: 1216; app_id: 10063753; browse_time: ******; 
Suppressed logs: 19; Referrer_self_uid: ******; product: Application 
Control; service: http; s_port: 64136; product_family: Network;
-->
<decoder name="Checkpoint-block-allow">
  <parent>Checkpoint-test</parent>
  <prematch offset="after_parent">^block|^allow</prematch>
  <regex offset="after_parent">(\w+) \S+ \S+ src: (\d+.\d+.\d+.\d+); dst: 
(\d+.\d+.\d+.\d+)</regex>
  <order>action,srcip,dstip</order>
</decoder>


<!--
Checkpoint-block-allow: extra fields: resource and product
Mar 30 09:03:35 127.0.0.1 Mar 30 8:51:43 st4600fw01n1 allow <eth6 mail src: 
192.168.5.133; dst: 89.208.212.2; proto: tcp; appi_name: ******; app_desc: 
******; app_id: 10063753; app_category: ******; matched_category: ******; 
app_properties: ******; app_risk: ******; app_rule_id: ******; 
app_rule_name: ******; web_client_type: Chrome; web_server_type: 
Microsoft-IIS; app_sig_id: 10063753:5; resource: 
http://www.aliveproxy.com/; proxy_src_ip: 192.168.5.133; product: 
Application Control; service: http; s_port: 64136; product_family: Network;
-->
<decoder name="Checkpoint-block-allow">
  <parent>Checkpoint-test</parent>
  <regex offset="after_regex">resource: (\S+); proxy_src_ip: \S+; product: 
(\.+); </regex>
  <order>url, extra_data</order>
</decoder>


I recommend you configure all your checkpoint devices with the same log 
format. If you can't you could use *several parents*:

<!--
pattern:
Mar 29 09:04:21 127.0.0.1 Mar 29 8:52:29 st4600fw01n1 Text
-->
<decoder name="Checkpoint-test">
  <prematch>^\w\w\w \d+ \d+:\d+:\d+ \S+ </prematch>
  <type>firewall</type>
</decoder>


<!--
pattern:
Mar 30 10:04:39 127.0.0.1 redirect <eth1 alert web_client_type: Chrome; 
resource: 
http://sc1.checkpoint.com/za/images/threatwiki/pages/TestAntiBotBlade.html; 
src: 192.168.5.133; dst: 172.226.217.148; proto: tcp; session_id: 
{0x56fb8896,0x10009,0xc50d2e0a,0xc0000001}; Protection name: Check Point - 
Testing Bot; malware_family: Check Point; Source OS: Windows; Confidence 
Level: 5; severity: 2; malware_action: Communication with C&C site; 
rule_uid: {9AF67731-0D35-4117-AF2B-9A47F9396D26}; Protection Type: URL 
reputation; malware_rule_id: {000000CE-00A4-0046-9658-621EA5468654}; 
protection_id: 00233CFEE; log_id: 2; proxy_src_ip: 192.168.5.133; scope: 
192.168.5.133; product: Anti Malware; service: http; s_port: 49244;


Mar 29 20:13:14 127.0.0.1 prevent <eth1 alert web_client_type: Microsoft 
IE; resource: 
http://www.bing.com/fd/ls/GLinkPing.aspx?IG=9A0044152B65437D93F87086B9E730D9&&ID=SERP,5118.1&url=http://sc1.checkpoint.com/z...;
 
src: 192.168.5.133; dst: 204.79.197.200; proto: tcp; session_id: 
{0x56fac5ba,0x10004,0xc50d2e0a,0xc0000000}; Protection name: Check Point - 
Testing Bot; malware_family: Check Point; Source OS: Windows; Confidence 
Level: 5; severity: 2; malware_action: Communication with C&C site; 
rule_uid: {9AF67731-0D35-4117-AF2B-9A47F9396D26}; Protection Type: URL 
reputation; malware_rule_id: {000000CE-00A4-0046-9658-621EA5468654}; 
protection_id: 00233CFEE; log_id: 2; proxy_src_ip: 192.168.5.133; scope: 
192.168.5.133; product: Anti Malware; service: http; s_port: 63119;
-->
<decoder name="Checkpoint-test">
  <prematch>^redirect \p|^prevent \p</prematch>
  <type>firewall</type>
</decoder>


<!--
Mar 30 09:03:56 127.0.0.1 Mar 30 8:52:05 st4600fw01n1 allow <eth6 mail src: 
192.168.5.133; dst: 89.208.212.2; proto: tcp; bytes: 2396; sent_bytes: 
1180; received_bytes: 1216; app_id: 10063753; browse_time: ******; 
Suppressed logs: 19; Referrer_self_uid: ******; product: Application 
Control; service: http; s_port: 64136; product_family: Network;
-->
<decoder name="Checkpoint-block-allow">
  <parent>Checkpoint-test</parent>
  <prematch offset="after_parent">^block|^allow</prematch>
  <regex offset="after_parent">(\w+) \S+ \S+ src: (\d+.\d+.\d+.\d+); dst: 
(\d+.\d+.\d+.\d+)</regex>
  <order>action,srcip,dstip</order>
</decoder>


<!--
Checkpoint-block-allow: extra fields: resource and product
Mar 30 09:03:35 127.0.0.1 Mar 30 8:51:43 st4600fw01n1 allow <eth6 mail src: 
192.168.5.133; dst: 89.208.212.2; proto: tcp; appi_name: ******; app_desc: 
******; app_id: 10063753; app_category: ******; matched_category: ******; 
app_properties: ******; app_risk: ******; app_rule_id: ******; 
app_rule_name: ******; web_client_type: Chrome; web_server_type: 
Microsoft-IIS; app_sig_id: 10063753:5; resource: 
http://www.aliveproxy.com/; proxy_src_ip: 192.168.5.133; product: 
Application Control; service: http; s_port: 64136; product_family: Network;
-->
<decoder name="Checkpoint-block-allow">
  <parent>Checkpoint-test</parent>
  <regex offset="after_regex">resource: (\S+); proxy_src_ip: \S+; product: 
(\.+); </regex>
  <order>url, extra_data</order>
</decoder>


P.S. My name is Jesus, not Jose ;).

Regards,
Jesus Linares.



On Wednesday, March 30, 2016 at 10:28:09 AM UTC+2, Fredrik wrote:
>
> Hi Jose,
>
>
> I got some help to sort out the different timestamps (format) and all log 
> types now use "Jan 27 09:41:01".  You asked about the firewall, this 
> particular one is a Checkpoint currently running version R77.20.
>
> The remaining question, that might be of interest to others on the path to 
> OSSEC mastery ;) ;) is how to handle messages with different "format" 
> coming from the same host. I have collected a bunch of messages that I 
> would like to be able to decode, but I'm not sure about the most efficient 
> way to build the parent/child decoder tree for this. 
>
> With the help received previously in this thread, I currently have the 
> following in my local_decoder and I'm experimenting with different addition 
> - none of which is working so far ;) 
>
> <decoder name="Checkpoint">
>   <prematch>^\w+ \d+ \d+:\d+:\d+ st4600fw01n\d</prematch>
>   <type>firewall</type>
> </decoder>
>
> <decoder name="Checkpoint-alert">
>   <parent>Checkpoint</parent>
>   <regex offset="after_parent">(\w+) \p\w+ \w+ 
> src:\s(\d+.\d+.\d+.\d+);\sdst:\s(\d+.\d+.\d+.\d+)</regex>
>   <order>action,srcip,dstip</order>
> </decoder>
>
> <decoder name="Checkpoint-alert">
>   <parent>Checkpoint</parent>
>   <regex offset="after_regex">\.*resource: (\.*);\.*product: (\.*);</regex>
>   <order>url,extra_data</order>
> </decoder>
>
>
> Below is a collection of syslog messages recieved from the firewall where 
> the first section is currently decoded using the local_decoder above:
>
>
> Mar 29 10:09:40 127.0.0.1 Mar 29 9:57:49 st4600fw01n1 block <eth6 mail 
> src: 192.168.7.206; dst: 54.72.9.51; proto: tcp; bytes: 4962; sent_bytes: 
> 530; received_bytes: 4432; app_id: 3404393449; browse_time: ******; 
> Suppressed logs: 1; Referrer_self_uid: ******; product: URL Filtering; 
> service: http; s_port: 54693; product_family: Network;
>
> Mar 29 20:57:00, st4600fw01n1, allow <eth1 mail src: 192.168.5.133; dst: 
> 89.208.212.2; proto: tcp; appi_name: ******; app_desc: ******; app_id: 
> 10063753; app_category: ******; matched_category: ******; app_properties: 
> ******; app_risk: ******; app_rule_id: ******; app_rule_name: ******; 
> web_client_type: Microsoft IE; web_server_type: Microsoft-IIS; app_sig_id: 
> 10063753:5; resource: http://aliveproxy.com/; proxy_src_ip: 
> 192.168.5.133; product: Application Control; service: http; s_port: 63867; 
> product_family: Network;
>
> Mar 30 09:04:14 127.0.0.1 Mar 30 8:52:22 st4600fw01n1 allow <eth6 mail 
> src: 192.168.5.133; dst: 23.67.132.180; proto: tcp; appi_name: ******; 
> app_desc: ******; app_id: 10003219; app_category: ******; matched_category: 
> ******; app_properties: ******; app_risk: ******; app_rule_id: ******; 
> app_rule_name: ******; app_sig_id: 10003219:4; proxy_src_ip: 192.168.5.133; 
> product: Application Control; service: https; s_port: 64166; 
> product_family: Network;
>
> Mar 30 09:03:56 127.0.0.1 Mar 30 8:52:05 st4600fw01n1 allow <eth6 mail 
> src: 192.168.5.133; dst: 89.208.212.2; proto: tcp; bytes: 2396; sent_bytes: 
> 1180; received_bytes: 1216; app_id: 10063753; browse_time: ******; 
> Suppressed logs: 19; Referrer_self_uid: ******; product: Application 
> Control; service: http; s_port: 64136; product_family: Network;
>
> Mar 30 09:03:35 127.0.0.1 Mar 30 8:51:43 st4600fw01n1 allow <eth6 mail 
> src: 192.168.5.133; dst: 89.208.212.2; proto: tcp; appi_name: ******; 
> app_desc: ******; app_id: 10063753; app_category: ******; matched_category: 
> ******; app_properties: ******; app_risk: ******; app_rule_id: ******; 
> app_rule_name: ******; web_client_type: Chrome; web_server_type: 
> Microsoft-IIS; app_sig_id: 10063753:5; resource: 
> http://www.aliveproxy.com/; proxy_src_ip: 192.168.5.133; product: 
> Application Control; service: http; s_port: 64136; product_family: Network;
>
> Mar 29 09:04:21 127.0.0.1 Mar 29 8:52:29 st4600fw01n1 block <eth6 mail 
> src: 192.168.5.136; dst: 37.157.4.15; proto: tcp; appi_name: ******; 
> app_desc: ******; app_id: 1875144601; app_category: ******; 
> matched_category: ******; app_properties: ******; app_risk: ******; 
> app_rule_id: ******; app_rule_name: ******; web_client_type: Other: 
> Mozilla/5.0 (Windows NT 6.3; WOW64; Trident/7.0; Touch; rv:11.0) like 
> Gecko; web_server_type: Other: nginx; resource: 
> http://adx.adform.net/adx/?rp=3&pv=1&bWlkPTE1NzU3NiZybmQ9ODU1M2JjNGMtMmY2MC00YzVjLWFhMzAtYmY5NzZlNDllZDNk&callback=_adform_cb_1459234242747_7491414591872548;
>  
> proxy_src_ip: 192.168.5.136; product: URL Filtering; service: http; s_port: 
> 54051; product_family: Network;
>
> Mar 29 09:06:12 127.0.0.1 Mar 29 8:54:21 st4600fw01n1 block <eth6 mail 
> src: 192.168.6.157; dst: 37.157.4.15; proto: tcp; appi_name: ******; 
> app_desc: ******; app_id: 1875144601; app_category: ******; 
> matched_category: ******; app_properties: ******; app_risk: ******; 
> app_rule_id: ******; app_rule_name: ******; web_client_type: Other: 
> Mozilla/5.0 (Windows NT 6.3; WOW64; Trident/7.0; Touch; rv:11.0) like 
> Gecko; web_server_type: Other: nginx; resource: 
> http://adx.adform.net/adx/?rp=3&pv=1&bWlkPTk1NzI4&callback=_adform_cb_1459234355177_008705563130792681;
>  
> proxy_src_ip: 192.168.6.157; product: URL Filtering; service: http; s_port: 
> 51746; product_family: Network;
>
> Mar 29 08:37:54 127.0.0.1 Mar 29 8:26:03 st4600fw01n1 block <eth6 mail 
> src: 192.168.6.157; dst: 152.115.75.210; proto: tcp; appi_name: ******; 
> app_desc: ******; app_id: 1875144601; app_category: ******; 
> matched_category: ******; app_properties: ******; app_risk: ******; 
> app_rule_id: ******; app_rule_name: ******; web_client_type: Other: 
> Mozilla/5.0 (Windows NT 6.3; WOW64; Trident/7.0; Touch; rv:11.0) like 
> Gecko; web_server_type: Other: nginx; resource: 
> http://adx.adform.net/adx/?rp=3&pv=1&bWlkPTk3ODMyJmN0dXJsPWh0dHA6Ly9mdXNpb24uYm9ubmllcnRpZHNrcmlmdGVyLnNlL2V2ZW50L3VlZXVqL2J0LmVrb25vbWkucGFmLnJvcy8xNDc3OTkyNzcvY2xpY2s_dXJsPQ&bWlkPTk3ODMxJmN0dXJsPWh0dHA6Ly9mdXNpb24uYm9ubmllcnRpZHNrcmlmdGVyLnNlL2V2ZW50L3lydmd2L2J0LmVrb25vbWkucGFmLnJvcy8xNDc3OTkyNzAvY2xpY2s_dXJsPQ&callback=_adform_cb_1459232656248_7681010355476278;
>  
> proxy_src_ip: 192.168.6.157; product: URL Filtering; service: http; s_port: 
> 51104; product_family: Network;
>
> Mar 29 08:35:17 127.0.0.1 Mar 29 8:23:24 st4600fw01n1 block <eth6 mail 
> src: 192.168.6.157; dst: 152.115.75.199; proto: tcp; appi_name: ******; 
> app_desc: ******; app_id: 1875144601; app_category: ******; 
> matched_category: ******; app_properties: ******; app_risk: ******; 
> app_rule_id: ******; app_rule_name: ******; web_client_type: Other: 
> Mozilla/5.0 (Windows NT 6.3; WOW64; Trident/7.0; Touch; rv:11.0) like 
> Gecko; web_server_type: Other: nginx; resource: 
> http://adx.adform.net/adx/?rp=3&pv=1&bWlkPTk1NzMw&callback=_adform_cb_1459232497393_6046677836175733;
>  
> proxy_src_ip: 192.168.6.157; product: URL Filtering; service: http; s_port: 
> 50904; product_family: Network;
>
>
>
>
> Mar 30 10:04:39 127.0.0.1 redirect <eth1 alert web_client_type: Chrome; 
> resource: 
> http://sc1.checkpoint.com/za/images/threatwiki/pages/TestAntiBotBlade.html; 
> src: 192.168.5.133; dst: 172.226.217.148; proto: tcp; session_id: 
> {0x56fb8896,0x10009,0xc50d2e0a,0xc0000001}; Protection name: Check Point - 
> Testing Bot; malware_family: Check Point; Source OS: Windows; Confidence 
> Level: 5; severity: 2; malware_action: Communication with C&C site; 
> rule_uid: {9AF67731-0D35-4117-AF2B-9A47F9396D26}; Protection Type: URL 
> reputation; malware_rule_id: {000000CE-00A4-0046-9658-621EA5468654}; 
> protection_id: 00233CFEE; log_id: 2; proxy_src_ip: 192.168.5.133; scope: 
> 192.168.5.133; product: Anti Malware; service: http; s_port: 49244;
>
> Mar 29 20:13:14 127.0.0.1 prevent <eth1 alert web_client_type: Microsoft 
> IE; resource: 
> http://www.bing.com/fd/ls/GLinkPing.aspx?IG=9A0044152B65437D93F87086B9E730D9&&ID=SERP,5118.1&url=http://sc1.checkpoint.com/z...;
>  
> src: 192.168.5.133; dst: 204.79.197.200; proto: tcp; session_id: 
> {0x56fac5ba,0x10004,0xc50d2e0a,0xc0000000}; Protection name: Check Point - 
> Testing Bot; malware_family: Check Point; Source OS: Windows; Confidence 
> Level: 5; severity: 2; malware_action: Communication with C&C site; 
> rule_uid: {9AF67731-0D35-4117-AF2B-9A47F9396D26}; Protection Type: URL 
> reputation; malware_rule_id: {000000CE-00A4-0046-9658-621EA5468654}; 
> protection_id: 00233CFEE; log_id: 2; proxy_src_ip: 192.168.5.133; scope: 
> 192.168.5.133; product: Anti Malware; service: http; s_port: 63119;
>
> Mar 30 9:04:59, st4600fw01n1, allow <eth6 mail src: 192.168.5.133; dst: 
> 207.244.85.73; proto: tcp; appi_name: ******; app_desc: ******; app_id
> : 10064017; app_category: ******; matched_category: ******; 
> app_properties: ******; app_risk: ******; app_rule_id: ******; 
> app_rule_name: ******; web_client_type: Chrome; web_server_type: Apache; 
> app_sig_id: 10064017:2; resource: http://www.bypassthat.com/; 
> proxy_src_ip: 192.168.5.133; product: Application Control; service: http; 
> s_port: 64499; product_family: Network;
>
>
>
> Mar 30 08:55:41 127.0.0.1 Mar 30 8:49:25 < sto-fwm03 mail System Alert 
> message: A Firewall Policy has been successfully installed on st4600fw01n2; 
> Object: st4600fw01n2; Event: Change; Parameter: policy_time; Condition: 
> changes Tue Mar 22 11:07:17 2016; Current value: Wed Mar 30 08:39:57 2016; 
> product: System Monitor; product_family: Network;
>
> Mar 30 08:56:02 127.0.0.1 Mar 30 8:49:47 < sto-fwm03 mail System Alert 
> message: A Firewall Policy has been successfully installed on st4600fw01n1; 
> Object: st4600fw01n1; Event: Change; Parameter: policy_time; Condition: 
> changes Tue Mar 22 11:09:21 2016; Current value: Wed Mar 30 08:43:12 2016; 
> product: System Monitor; product_family: Network;
>
>  
>
> On Tuesday, March 29, 2016 at 12:53:19 PM UTC+2, Jesus Linares wrote:
>
> Hi,
>
> first, I would use the same format for both messages. Two options:
>
>    - Change log format in each device. 
>       - Choose one:
>          - 1Mar2016 15:17:09 redirect st4600fw01n1
>          - Jan 27 09:41:01 127.0.0.1 Jan 27 9:32:28 st4600fw01n1
>       - This part could be your parent decoder (using regular expressions)
>    - Change the log received with rsyslog, for example, add a string:
>       - *MyFirewall *1Mar2016 15:17:09 redirect st4600fw01n1
>       - So, the parent decoder will be <prematch*>^**MyFirewall 
>       </prematch>*
>    
> The prematch of each sub-decoder (child decoder) could be the type of log, 
> maybe "web_client_type" or "mail".
>
> What firewall are you using? Version?.
>
> Paste here more logs.
>
> Regards,
> Jesus Linares
>
> On Thursday, March 24, 2016 at 9:47:28 PM UTC+1, Fredrik wrote:
>
> Hi Jesus,
>
>
> Got sidetracked with other projects, and finally getting back to my 
> questions about handling different messages from the same device 
> (firewall). Also, Jesus your suggestion about placing a prematch in the 
> suggested decoder in this thread - what would be a good prematch here? 
>
> Should I add an OR to the parent decoder to do the first match and then 
> use different subdecoders to extract the useful information from the other 
> type of message? How do you deal with these type of scenarios?
>
> Just so I got that part right. Giving two sections the same 
> <decoder-name>Checkpoint-alert</decoder> in essence means that it is one 
> decoder, but defined in two sections? 
>
>
> Please find the two message-types below for reference.
>
> MESSAGE1:
> 1Mar2016 15:17:09 redirect st4600fw01n1 <eth1 alert web_client_type: 
> Chrome; resource: http://
> sc1.checkpoint.com/za/images/threatwiki/pages/TestAntiBotBlade.html; src: 
> 192.168.1.15; dst: 23.8.4.103; proto: tcp; session_id: 
> {0x56d5a2de,0x4,0xc50d2e0a,0xc0000001}; Protection name: Check Point - 
> Testing Bot; malware_family: Check Point; Source OS: Windows; Confidence 
> Level: 5; severity: 2; malware_action: Communication with C&C site; 
> rule_uid: {9AF67731-0D35-4117-AF2B-9A47F9396D26}; Protection Type: URL 
> reputation; malware_rule_id: {000000CE-00A4-0046-9658-621EA5468654}; 
> protection_id: 00233CFEE; log_id: 2; proxy_src_ip: 192.168.1.15; scope: 
> 10.46.5.133; product: Anti Malware; service: http; s_port: 61834;
>
> MESSAGE2:
> Jan 27 09:41:01 127.0.0.1 Jan 27 9:32:28 st4600fw01n1 allow <eth1 mail src
> : 192.168.1.15; dst: 89.208.212.2; proto: tcp; appi_name: ******; app_desc
> : ******; app_id: 10063753; app_category: ******; matched_category: 
> ******; app_properties: ******; app_risk: ******; app_rule_id: ******; 
> app_rule_name: ******; web_client_type: Chrome; web_server_type: Microsoft
> -IIS; app_sig_id: 10063753:5; resource: http://www.aliveproxy.com/; 
> proxy_src_ip: 192.168.1.15 product: Application Control; service: http; 
> s_port: 58579; product_family: Network;
>
> On Monday, March 7, 2016 at 12:11:21 PM UTC+1, Jesus Linares wrote:
>
> Hi Fredrik,
>
> The expression "\.+" matches for anything. Usually, it is not a good idea 
> because is slow and maybe you capture something that you don't want. So, 
> *when 
> it is possible*, it is better to use something specific.
>
> When you have different decoders (different name) with the same parent, 
> you should use a prematch. If you don't use prematch, it is fired the first 
> rule. In the previous example:
>
> Log:
> Mar  3 12:15:24 LinMV TestDecoder[1963]: TypeB field1: hi; value2: bye; 
> value3: seeyou
>
> Without prematch:
> **Phase 2: Completed decoding.
>        decoder: 'TestDecoder'
>        extra_data: 'seeyou'
>
> With prematch:
> **Phase 2: Completed decoding.
>        decoder: 'TestDecoder'
>        id: 'bye;'
>
>
> Without prematch, the decoder is TestDecoder-1, but it should be 
> TestDecoder2 (because it has the string "field1". In my view, it is a good 
> practice use prematch, but sometimes it is no necessary.
>
> Regarding your last question, could you use the same log format in your 
> firewall and in the blade?. Paste here two logs of each one (firewall and 
> blade) and your decoders, and we will take a look ;)
>
> Regards.
> Jesus Linares
>
> On Friday, March 4, 2016 at 9:08:34 PM UTC+1, Fredrik wrote:
>
> Hi All,
>
>
> In this context and with your great response. What would you PROs suggest 
> I do when decoding another type of message from the same firewall - but a 
> different blade (i.e. module). Turns out that the messages look somewhat 
> different. This is a sample from the other module and it won't match with 
> the current decoder. Should I add an OR to the parent decoder to do the 
> first match and then use different subdecoders to extract the useful 
> information from the other type of message? How do you deal with these type 
> of scenarios?
>
> MESSAGE:
> 1Mar2016 15:17:09 redirect st4600fw01n1 <eth1 alert web_client_type: 
> Chrome; resource: http://
> sc1.checkpoint.com/za/images/threatwiki/pages/TestAntiBotBlade.html; src: 
> 192.168.1.15; dst: 23.8.4.103; proto: tcp; session_id: 
> {0x56d5a2de,0x4,0xc50d2e0a,0xc0000001}; Protection name: Check Point - 
> Testing Bot; malware_family: Check Point; Source OS: Windows; Confidence 
> Level: 5; severity: 2; malware_action: Communication with C&C site; 
> rule_uid: {9AF67731-0D35-4117-AF2B-9A47F9396D26}; Protection Type: URL 
> reputation; malware_rule_id: {000000CE-00A4-0046-9658-621EA5468654}; 
> protection_id: 00233CFEE; log_id: 2; proxy_src_ip: 192.168.1.15; scope: 
> 10.46.5.133; product: Anti Malware; service: http; s_port: 61834;
>
> Best regards,
> Fredrik 
>
>
> On Wednesday, March 2, 2016 at 11:03:08 AM UTC+1, Fredrik wrote:
>
> Hi All,
>
>
> Came across this where I think I would be helped by extracting fields both 
> in forward (from beginning) and in reverse (from end) order of messages!? 
> Is this possible, if so, is it stupid given that there are other (better) 
> ways to accomplish the same thing :/ ? 
>
> In addition to the fields my current decoder extracts, I was hoping to 
> extract the resource (http://www.aliveproxy.com/) and also the product 
> (Application 
> Control;). My idea was to add a secondary statement, before the <order> 
> statement, something in the lines of:
> <regex>$/p\w+\s    [...] and work my way backward so that I can extract 
> Application Control and resource . How would you suggest I do this?! 
>
> Thanks again for all the great help - hope my threads (and questions) can 
> be useful for other newstarters outhere trying to get there feet off the 
> ground ;) 
>
> Best regards,
> Fredrik 
>
> LOG-MESSAGE
>
> *Jan 27 09:41:01 127.0.0.1 Jan 27 9:32:28 st4600fw01n1 *allow <eth1 mail 
> src: 192.168.1.15; dst: 89.208.212.2; proto: tcp; appi_name: ******; 
> app_desc: ******; app_id: 10063753; app_category: ******; matched_category
> : ******; app_properties: ******; app_risk: ******; app_rule_id: ******; 
> app_rule_name: ******; web_client_type: Chrome; web_server_type: Microsoft
> -IIS; app_sig_id: 10063753:5; resource: http://www.aliveproxy.com/; 
> proxy_src_ip: 192.168.1.15 product: Application Control; service: http; 
> s_port: 58579; product_family: Network;
>
> MY CURRENT DECODER
>
> <decoder name="Checkpoint">
>   <prematch>^\w+ \d+ \d+:\d+:\d+ st4600fw01n\d</prematch>
>   <type>firewall</type>
> </decoder>
>
> <decoder name="Checkpoint-alert">
>   <parent>Checkpoint</parent>
>   <regex offset="after_parent">(\w+) \p\w+ \w+ 
> src:\s(\d+.\d+.\d+.\d+);\sdst:\s(\d+.\d+.\d+.\d+)</regex>
>   <order>action,srcip,dstip</order>
> </decoder>
>
> LOGTEST OUTPUT
>
>
> **Phase 1: Completed pre-decoding.
>        full event: 'Jan 27 09:41:01 127.0.0.1 Jan 27 9:32:28 st4600fw01n1 
> allow <eth1 mail src: 192.168.1.15 dst: 89.208.212.2; proto: tcp; 
> appi_name: ******; app_desc: ******; app_id: 10063753; app_category: 
> ******; matched_category: ******; app_properties: ******; app_risk: ******; 
> app_rule_id: ******; app_rule_name: ******; web_client_type: Chrome; 
> web_server_type: Microsoft-IIS; app_sig_id: 10063753:5; resource: 
>
> ...

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