Questions tagged [audit]

Observing/logging a resource for purposes of: - Adding it to a blacklist of whitelist - Keeping tabs on the security of a system

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12 views

Suggestions for auditing screensaver unlocking

Our network includes several flavors of system, but all are CentOS 7 and all run either KDE or Gnome. I've implemented a rule: -w /usr/lib64/security/pam_sss.so -p rwxa And this works for KDE -- it ...
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Does mcafee mysql audit plugin not work on Percona Server 5.7.27-30?

My environment is 5.7.27-30-log Percona Server on CentOS 7.4. When I installed this plugin (audit-plugin-percona-5.7-1.1.7-866), I got the following error messages. mysql> INSTALL PLUGIN AUDIT ...
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What's the meaning of parameter Priority_boost

I have searched the web for answers to this. In auditd configuration file auditd.conf there is a parameter priority_boost. The RedHat manpage says: priority_boost This is a non-negative number that ...
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Windows Server 2019 auditing removed as soon as applied

I've got a Windows Server 2019 domain controller with a GPO applying auditing on logon events. RSOP shows it is applied, however, if I look at the event logs, the moment it applies I can see that it ...
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21 views

Monitoring users logged in with SSH-CA (certificates)

I was hoping to get some help with an approach that could be used... I am building out a solution that will use SSH-CA (that is, SSH where authentication is done via certificates). Flow is simple: ...
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59 views

Check Active Directory GPO audit settings via Powershell

I am trying to automate checking the audit settings on GPOs. In the GUI, to check one GPO, I'd open Group Policy Management Console, expand domains, the domain name, Group Policy Objects, select a GPO ...
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55 views

Windows Server local policy can't be modifed and no audit log

I use Wazuh for mornitor log from Windows Server 2016 but for a while Wazuh did not receive any log, check the Windows Local Policy and see that Windows logon audit is not defined althought I enabled ...
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getting the error “ goaudit service dead but subsys locked ”

/usr/sbin/goaudit Stopping auditd: [OK] Failed to flush existing audit rules. Error: exit status 255 did all the basic things like removing pid and checked ...
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31 views

How to verify if an e-mail was really sent?

A customer states that an email was received from Bob. Bob claims that the email was never sent. How can I verify which side is lying? If both sides have on-premises email servers (e.g. Exchange ...
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73 views

Protecting activity logs in Azure

I know that managing identity securely, providing least needed access etc are important but another critical best practice is having audit logs which cannot be modified, deleted or disabled even by ...
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windows 10 audit failure 4673 svchost.exe

Having a Windows 10 PC, currently standalone not networked. The audit policy is supposed to be and is currently set to this: Account Logon >> Credential Validation - Failure Account Logon >&...
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73 views

Investigate potential breach in Azure App Service

We suspect we have had a data breach, but we are not sure how to investigate it to determine the source of the breach or what data was sent. We have an app service that has been running for a while ...
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326 views

Prevent Anonymous logons on windows-server 2016

I can't figure out how to entirely disable anonymous logon on Windows Server 2016 which is not a domain controller (regular instance). With the settings currently set I'm truly surprised to see such ...
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52 views

O365 Emails Getting Marked as Spam when Moved to new Folder

One of our main inbound mail accounts seems to be having a strange issue where the emails are getting marked as spam, not when they arrived, but when they are moved to a folder. They are also all ...
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69 views

Filtering out processes Windows File Audit (event 4663)

I would like to use Windows File Audit to monitor access to a set of files on my system (i.e. event 4663). I noticed that most of the events generated is noise from a few processes. I would like a ...
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355 views

How can I control the audit backlog limit without the auditd package installed?

I would like to use OSQuery instead of the Linux audit daemon. In my testing on Ubuntu 18.04, if OSQuery binds to the kernel security module and the auditd package is installed, it complains about ...
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45 views

Should Active Directory, Web Apps and MS-SQL all have the same users?

I am looking for a clean way to do audit trails in MS SQL Server, for compliance reasons, preferably completely on the database side without involving the web application. When talking about audit ...
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102 views

View or open audit for the SharePoint Online site

I am trying to figure out how to view Audit logs for the SharePoint Online site. On our on-prem SharePoint 2013 farm in the configure audit settings for a particular site collection, I have audit ...
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230 views

Command to Get Security Audit settings

Im looking to retrieve the Security audit configuration on a domain joined PC which has audit settings applied Via a domain GPO, but im getting - what seems to be - conflicting results. If i run an ...
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359 views

Auditing SSH sessions?

I'm looking for a way that I can record and audit SSH sessions for users on my server. I need to be able to know when a user executed a command, what command they executed, and also be able to follow ...
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345 views

How to view the history of the command “passwd <username>”

I'am looking for a way to audit the history of password change for the user root (the passwd command) for a local network server. How i can view the date and/or the time of execution this command and ...
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441 views

Auditd Log all executions except some scripts

I configured my auditd to log all execve syscalls using these rules: -a exit,always -F arch=b32 -S execve -a exit,always -F arch=b64 -S execve While this perfectly captures all activity of any user ...
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What's the difference between auid, uid, euid, suid, fsuid, obj_uid, gid, egid, sgid, fsgid, obj_gid in `auditctl`?

My server is centos7.6 with auditd 2.8.5 In audit rule, I set: -a always,exit -F arch=b32 -S adjtimex,settimeofday -F key=time-change But this rule also record normal ntpd activities,then I tried ...
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139 views

Active Directory Audit of a User and all Services/Software attached

I have a user I need to audit. This single user is used by a bunch of services/software among other things to run. My job is to figure out everything that is tied to this user and then create new ...
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263 views

Auditd how to exclude everything

I am trying to exclude everything but the things I want in Auditd, however the things I've tried, seem to log a lot more details, the majority are irrelevant. -a never,exclude -F msgtype=CWD -a ...
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53 views

Auditing permission changes in Exchange

What's the best way to confirm to an auditor that a change made to any permission in Exchange was actually made by a legitimate admin with an approved change ticket? We were recently asked to ...
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8k views

Exchange 2016: How to audit mailbox user access to get their IP?

I have a mailbox user (Exchange 2016) who belief that his mailbox was hacked. So I want to audit the access to his mailbox. I enabled audit via Set-Mailbox -Identity "Ben Smith" -AuditEnabled $true ...
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441 views

Auditd - log all ssh sessions

We have about a thousand servers / virtual machines, and currently keeping track of who did what where isn't easy. And to make it worse, clients have access to their own machines and often don't know ...
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666 views

Windows registry subkey creation not generating logs (Windows event ID 4657)

I am experiencing an issue where I am trying to audit a specific registry key via Windows Event ID 4657. TL; DR: I have tried to setup auditing on a registry key when a new subkey is created under it,...
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File system audit doesn't work for folder creation in Windows 7

I wish to enable file system audit in Windows 7. Surprisingly, I've found that no audit events occurs, when folders are creating. There is events for folder/file deletion, for file creation, but no ...
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232 views

Windows Server File Share Audit File Attribute Modification

My goal is to identify what user has set the Hidden attribute on a file within the local file share. I have enabled File Share access auditing as per this article. In short: Added a group policy ...
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608 views

Using auditd and retaining log files for 6 months.

Disclaimer: I'm not an accredited nor very experienced sysadmin but have been tasked with some sysadmin responsibilities Task: Find a way to log all account management activities (e.g., account ...
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437 views

Password change audit on solaris

Is it possible for the Solaris audit sub system to log all password resets for local Solaris accounts? I can't find anything in Oracle's docs, or through general googling, so I'm curious whether this ...
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237 views

ausearch to filter audit logs to show only read, write , attribute changes in file

I want to filter audit logs for changes made to /etc/hosts file using ausearch (audit). I can see multiple entries for single modify action for file in ausearch like syscall=chmod, syscall=open etc. ...
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169 views

Enabling audit logging on GCP for VM creation

In Google Cloud Platform, is all audit logging enabled by default? I'm interested in Admin Activity logs (https://cloud.google.com/logging/docs/audit/#admin-activity), which "record when VM instances ...
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112 views

auditctl doesn't stores reads

So I have this rule on auditctl: -w /home/ec2-user/myfile -p rwa -k key-name But when I run ausearch -f /home/ec2-user/myfile or check the logs in /var/log/audit/audit.log, I can't see any ...
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1k views

Can't enable Event Log

Hi I have a Windows 2012 Server and would like to do some event logging. But when I go to the event logger I am unable to Enable Logging for the desired events. (I'm logged in as the Administrator ...
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41 views

How to consume filesystem audit information

We have a system used by some departments in the company and we were facing issues due to some miss-configurations on that system so I enabled auditing files being Written or deleted. Now that I have ...
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45 views

Server 2012 User logins log

As part of a technical team at an institution I am needing a way to view users logging onto computers in realtime What I would like to know is if I can have an auto updating program/script that will ...
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153 views

auditctl: Error - nested rule files not supported

I'm trying to list the rules in a rules file using auditctl, whenever I do: auditctl -R audit.rules -l; I receive the error Error - nested rule files not supported. I've gone so far as to empty the ...
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2k views

Owner/administrator doesn't have permissions to change audit settings

I want to enable file auditing on a shared network drive specifically in order to track who creates and deletes files (in the event of a catastrophe). Somehow I don't have permission to change or ...
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104 views

How to detect unused windows server shared folders

We have inherited a fileserver that holds a bunch (about 100) nested shared folders. For example: D:\L1 > shared as L1 D:\L1\L2 > shared as L2 D:\L1\L2\L3 > shared as L3 I am currently ...
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29 views

get audit settings file or directory

I am looking for a report / utility that will tell me what Audit Settings have been set for a particular directory from a command prompt not through the UI. For example, I set the advanced security ...
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478 views

How to monitor the Windows Certificate Store

I have a strange phenomenon on some Windows 10 client machines. I install a root certificate from our enterprise CA on them through a script (none of the clients are domain-joined). Immediately after ...
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400 views

About GCP Console login audit

I wonder How to get "audit log" GCP Console (https://console.cloud.google.com) loggin failure ? Thank you.
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154 views

Windows Server File auditing Filtering for true file opens

In auditing for Event ID 4663 in the security log of a Windows File server for users opening files and I'm finding that there seems to be in my opinion some false positives. I have a Windows Server ...
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3k views

Auditing NTLM authentication on Domain Controllers: which GPO?

We are wanting to turn on NTLM authentication auditing to gather further details on some clients trying to authenticate using NTLM to the domain/DCs. Specifically we want to enable: Network ...
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744 views

How to stop syslog or auditd/ audisp from adding host information to forwarded log files? [duplicate]

I have forwarded the auditd log files to central log server but the log received at the central log server have extra information added to it which I dont want. Note (auditd and syslog are on same ...
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334 views

GDPR - Server access logging at the point of authentication

In the UK are are undergoing a large reform of data protection policy known as GDPR. For one client we need to beef up our auditing on access to certain servers by our support and development team. I ...
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58 views

How to track and log file transfers between Production and Non-Production environments?

We have a security/compliance audit that we are preparing for and since we deal with financial institutions, one of the potential flags mentioned was how we track/monitor files that are transferred ...

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