Hacking on Medium
A story about doing Windows security labs by Pentester Academy


Hi everyone it’s me Abhiram V aka AnonArtist,

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Hacking on Medium
[TryHackMe] Empline — Writeup


My writeup for the Empline TryHackMe room.

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My First Bug-Reflected XSS
https://medium.com/@nayakdevraj010/my-first-bug-reflected-xss-3f4ba2ba1cc6?source=rss------bug_bounty-5

Hello to all the cyber security enthusiasts. I am Devraj Nayak, a budding bug bounty hunter and cyber security researcher. So let’s get…Continue reading on Medium » (https://medium.com/@nayakdevraj010/my-first-bug-reflected-xss-3f4ba2ba1cc6?source=rss------bug_bounty-5)

Bypass the windows defender and other AVs and execute shellcode remotely via C#
https://www.reddit.com/r/redteamsec/comments/pr5npw/bypass_the_windows_defender_and_other_avs_and/

<!-- SC_OFF -->So lately I have been learning techniques involved in red teaming and evading AVs took my attention. I found AVs use signature matching and modern AVs like windows defender uses behaviour detection. In this, I have created a snippet that will exchange the keys on the connection (not hardcoding) and will use those keys to encrypt and decrypt data. Code Repository: https://github.com/tbhaxor/csharp-and-infosec See the video here: https://drive.google.com/file/d/1UsE8MgJ2dfO0xeARo_cIw956HChHgP7i/view?usp=sharing https://preview.redd.it/eiiugxrkvfo71.png?width=1920&format=png&auto=webp&s=3270191a981e221afaa17e1688e8c1fae37a00f6 <!-- SC_ON --> submitted by /u/tbhaxor (https://www.reddit.com/user/tbhaxor)
[link] (https://www.reddit.com/r/redteamsec/comments/pr5npw/bypass_the_windows_defender_and_other_avs_and/) [comments] (https://www.reddit.com/r/redteamsec/comments/pr5npw/bypass_the_windows_defender_and_other_avs_and/)

QLOG - Windows Security Logging
http://www.kitploit.com/2021/09/qlog-windows-security-logging.html

QLOG provides enriched Event Logging for security related events on Windows based systems. It is under heavy development and currently in alpha state. QLOG doesn’t use API hooks and it doesn’t require a driver to be installed on the target system, QLOG only uses ETW to retrieve its telemetry. Currently QLOG supports “process create” events only, but other enriched events will follow soon. QLOG runs as a Windows Services, but can also run in console mode, if you want to stream the enriched events to console directly.
How does it work
QLOG reads from ETW, enriches events and writes enriched events to Event Channel “QLOG”. It creates and uses a new event source named “QMonitor” to write to Windows Eventlog. Here is sequence of event processing: Create ETW session & Subscribe to relevant kernel and userland (https://www.kitploit.com/search/label/UserLAnd) ETW providers Read Events from ETW providers Enrich Events Write enriched events to eventlog channel QLOG
Development & License
QLOG is being developed by threathunters.io community and will be open sourced once it reaches production grade maturity.
Why we created QLOG?
Sysmon does a great job, but we wanted to create a tool which is open source and doesn't require drivers to be installed on target systems. Also, Sysmon is NOT SUPPORTED by Microsoft (https://www.kitploit.com/search/label/Microsoft) at all. So, if you run into problems in prod, you're at your own. Sure, QLOG doesn't have support either, but it will be open sourced so we can fix issues with the power of the security community and develop new features based on the requirements (https://www.kitploit.com/search/label/Requirements) of the community.
Usage & install
QLOG requires .NET Framework >=4.7.2 to be installed. To run in interactive console mode, just run qlog.exe
To install / deinstall as Windows service, run: #install service
qlog.exe -i

#deinstall service
qlog.exe -u

Do you want to contribute?
Please see https://threathunters.io/ on how to join threathunters.io community.
Example output of enriched PROCESS CREATE events
{
"EventGuid": "68795fe8-67e7-410b-a5c0-8364746d7ffe",
"StartTime": "2021-07-11T11:06:56.9621746+02:00",
"QEventID": 100,
"QType": "Process Create",
"Username": "TESTOS\\TESTUSER",
"Imagefilename": "TEAMS.EXE",
"KernelImagefilename": "TEAMS.EXE",
"OriginalFilename": "TEAMS.EXE",
"Fullpath": "C:\\Users\\TESTUSER\\AppData\\Local\\Microsoft\\Teams\\current\\Teams.exe",
"PID": 21740,
"Commandline": "\"C:\\Users\\TESTUSER\\AppData\\Local\\Microsoft\\Teams\\current\\Teams.exe\" --type=renderer --autoplay-policy=no-user-gesture-required --disable-background-timer-throttling --field-trial-handle=1668,499009601563875864,12511830007210419647,131072 --enable-features=WebComponentsV0Enabled --disable-features=CookiesWithoutSameSiteMustBeSecure,SameSiteByDefaultCookies,SpareRendererForSitePerProcess --lang=de --enable-wer --ms-teams-less-cors=522133263 --app-user-model-id=com.squirrel.Teams.Teams --app-path=\"C:\\Users \\jocke",
"Modulecount": 41,
"TTPHash": "42AC63285408F5FD91668B16F8E9157FD97046AB63E84117A14E31A188DDC62F",
"Imphash": "F14F00FA1D4C82B933279C1A28957252",
"sha256": "155625190ECAA90E596CB258A07382184DB738F6EDB626FEE4B9652FA4EC1CC2",
"md5": "9453BC2A9CC489505320312F4E6EC21E",
"sha1": "7219CB54AC535BA55BC1B202335A6291FDC2D76E",
"ProcessIntegrityLevel": "None",
"isOndisk": true,
"isRunning": true,
"Signed": "Signature valid",
"AuthenticodeHash": "B8AD58EE5C35B3F80C026A318EEA34BABF6609C077CB3D45AEE69BF5C9CF8E11",
"Signatures": [
{
"Subject": "CN=Microsoft Corporation, O=Microsoft Corporation, L=Redmond, S=Washington, C=US",
"Issuer": "CN=Microsoft Code Signing PCA 2010, O=Microsoft Corporation, L=Redmond, S=Washington, C=US",
"NotBefore": "15.12.2020 22:24:20",
"NotAfter": "02.12.2021 22:24:20",
"DigestAlgorithmName": "SHA256",

"Thumbprint": "E8C15B 4C98AD91E051EE5AF5F524A8729050B2A2",
"TimestampSignatures": [
{
"Subject": "CN=Microsoft Time-Stamp Service, OU=Thales TSS ESN:3BBD-E338-E9A1, OU=Microsoft America Operations, O=Microsoft Corporation, L=Redmond, S=Washington, C=US",
"Issuer": "CN=Microsoft Time-Stamp PCA 2010, O=Microsoft Corporation, L=Redmond, S=Washington, C=US",
"NotBefore": "12.11.2020 19:26:02",
"NotAfter": "11.02.2022 19:26:02",
"DigestAlgorithmName": "SHA256",
"Thumbprint": "E8220CE2AAD2073A9C8CD78752775E29782AABE8",
"Timestamp": "15.06.2021 00:39:50 +02:00"
}
]
},
{
"Subject": "CN=Microsoft Corporation, O=Microsoft Corporation, L=Redmond, S=Washington, C=US",
"Issuer": "CN=Microsoft Code Signing PCA 2011, O=Microsoft Corporation, L=Redmond, S=Washington, C=US",
"NotBefore": "15.12.2020 22:31:47",
"NotAfter": "02. 12.2021 22:31:47",
"DigestAlgorithmName": "SHA256",
"Thumbprint": "C774204049D25D30AF9AC2F116B3C1FB88EE00A4",
"TimestampSignatures": [
{
"Subject": "CN=Microsoft Time-Stamp Service, OU=Thales TSS ESN:F87A-E374-D7B9, OU=Microsoft Operations Puerto Rico, O=Microsoft Corporation, L=Redmond, S=Washington, C=US",
"Issuer": "CN=Microsoft Time-Stamp PCA 2010, O=Microsoft Corporation, L=Redmond, S=Washington, C=US",
"NotBefore": "14.01.2021 20:02:23",
"NotAfter": "11.04.2022 21:02:23",
"DigestAlgorithmName": "SHA256",
"Thumbprint": "ED2C601EDD49DD2A934D2AB32DCACC19940161EF",
"Timestamp": "15.06.2021 00:39:53 +02:00"
}
]
}
],
"ParentProcess": {
"EventGuid": null,
"StartTime": "2021-07-11T09:54:28.9558001+02:00",
"QEventID": 100,
"QType": "Process Create",
"Username": "TEST- OS\\TESTUSER",
"Imagefilename": "",
"KernelImagefilename": "",
"OriginalFilename": "TEAMS.EXE",
"Fullpath": "C:\\Users\\TESTUSER\\AppData\\Local\\Microsoft\\Teams\\current\\Teams.exe",
"PID": 16232,
"Commandline": "C:\\Users\\TESTUSER\\AppData\\Local\\Microsoft\\Teams\\current\\Teams.exe ",
"Modulecount": 162,
"TTPHash": "",
"Imphash": "F14F00FA1D4C82B933279C1A28957252",
"sha256": "155625190ECAA90E596CB258A07382184DB738F6EDB626FEE4B9652FA4EC1CC2",
"md5": "9453BC2A9CC489505320312F4E6EC21E",
"sha1": "7219CB54AC535BA55BC1B202335A6291FDC2D76E",
"ProcessIntegrityLevel": "Medium",
"isOndisk": true,
"isRunning": true,
"Signed": "Signature valid",
"AuthenticodeHash": "B8AD58EE5C35B3F80C026A318EEA34BABF6609C077CB3D45AEE69BF5C9CF8E11",
"Signatures": [
{
"Subject": "CN=Microsoft Corporation, O=Microsoft Corporation, L=Redmond, S=W ashington, C=US",
"Issuer": "CN=Microsoft Code Signing PCA 2010, O=Microsoft Corporation, L=Redmond, S=Washington, C=US",
"NotBefore": "15.12.2020 22:24:20",
"NotAfter": "02.12.2021 22:24:20",
"DigestAlgorithmName": "SHA256",
"Thumbprint": "E8C15B4C98AD91E051EE5AF5F524A8729050B2A2",
"TimestampSignatures": [
{
"Subject": "CN=Microsoft Time-Stamp Service, OU=Thales TSS ESN:3BBD-E338-E9A1, OU=Microsoft America Operations, O=Microsoft Corporation, L=Redmond, S=Washington, C=US",
"Issuer": "CN=Microsoft Time-Stamp PCA 2010, O=Microsoft Corporation, L=Redmond, S=Washington, C=US",
"NotBefore": "12.11.2020 19:26:02",
"NotAfter": "11.02.2022 19:26:02",
"DigestAlgorithmName": "SHA256",
"Thumbprint": "E8220CE2AAD2073A9C8CD78752775E29782AABE8",
"Timestamp": "15.06.2021 00:39:50 +02:00"
}
]
},
{
"Subject": "CN=Microsoft Corporation, O=Microsoft Corporation, L=Redmond, S=Washington, C=US",
"Issuer": "CN=Microsoft Code Signing PCA 2011, O=Microsoft Corporation, L=Redmond, S=Washington, C=US",

"NotBefore": "15.12.2020 22:31:47",
"NotAfter": "02.12.2021 22:31:47",
"DigestAlgorithmName": "SHA256",
"Thumbprint": "C774204049D25D30AF9AC2F116B3C1FB88EE00A4",
"TimestampSignatures": [
{
"Subject": "CN=Microsoft Time-Stamp Service, OU=Thales TSS ESN:F87A-E374-D7B9, OU=Microsoft Operations Puerto Rico, O=Microsoft Corporation, L=Redmond, S=Washington, C=US",
"Issuer": "CN=Microsoft Time-Stamp PCA 2010, O=Microsoft Corporation, L=Redmond, S=Washington, C=US",
"NotBefore": "14.01.2021 20:02:23",
"NotAfter": "11.04.2022 21:02:23",
"DigestAlgorithmName": "SHA256",
"Thumbprint": "ED2C601EDD49DD2A934D2AB32DCACC19940161EF",
"Timestamp": "15.06.2021 00:39:53 +02:00"
}
]
}
],
"ParentProcess": null
}
}


Download QLOG (https://github.com/threathunters-io/QLOG)

KitPloit - PenTest Tools!
QLOG - Windows Security Logging


https://1.bp.blogspot.com/-0CNZScA0sq4/YUON6V-lfQI/AAAAAAAAuug/xjavC5KDHcQVEUB8BmaMUVRy8ioMz3uUgCNcBGAsYHQ/w640-h426/code-light-keyboard.jpg
QLOG provides enriched Event Logging for security related events on Windows based systems. It is under heavy development and currently in alpha state. QLOG doesn’t use API hooks and it doesn’t require a driver to be installed on the target system, QLOG only uses ETW to retrieve its telemetry. Currently QLOG supports “process create” events only, but other enriched events will follow soon. QLOG runs as a Windows Services, but can also run in console mode, if you want to stream the enriched events to console directly.
How does it work

QLOG reads from ETW, enriches events and writes enriched events to Event Channel “QLOG”. It creates and uses a new event source named “QMonitor” to write to Windows Eventlog.

Here is sequence of event processing:

* Create ETW session & Subscribe to relevant kernel and userland ETW providers
* Read Events from ETW providers
* Enrich Events
* Write enriched events to eventlog channel QLOG

Development & License

QLOG is being developed by threathunters.io community and will be open sourced once it reaches production grade maturity.

Why we created QLOG?

Sysmon does a great job, but we wanted to create a tool which is open source and doesn't require drivers to be installed on target systems. Also, Sysmon is NOT SUPPORTED by Microsoft at all. So, if you run into problems in prod, you're at your own. Sure, QLOG doesn't have support either, but it will be open sourced so we can fix issues with the power of the security community and develop new features based on the requirements of the community.

Usage & install

QLOG requires .NET Framework >=4.7.2 to be installed.

To run in interactive console mode, just run

qlog.exe


To install / deinstall as Windows service, run:

#install service
qlog.exe -i

#deinstall service
qlog.exe -u


Do you want to contribute?

Please see https://threathunters.io/ on how to join threathunters.io community.

Example output of enriched PROCESS CREATE events
<div class="snippet-clipboard-content position-relative" data-snippet-clipboard-copy-content="{ "eventguid": "68795fe8-67e7-410b-a5c0-8364746d[...]

Chaining bugs for better bounties
https://infosecwriteups.com/chaining-bugs-for-better-bounties-f14d6b2129de?source=rss------bug_bounty-5

Chaining some low level bugs to a higher level is always fun and challenging at the same time and best thing is you get higher reward if…Continue reading on InfoSec Write-ups » (https://infosecwriteups.com/chaining-bugs-for-better-bounties-f14d6b2129de?source=rss------bug_bounty-5)

https://external-preview.redd.it/_gD0ZP_x9RL1xTfjIYNjvo_-VE3h5n8b4kItzROsOdY.jpg?width=640&crop=smart&auto=webp&s=68207b8e9cc33ed65ced002107ba76ee90efc9a9 So today I have learnt how to bypass windows defender and other AVs by executing encrypted shellcodes via TCP. You can find the code snippets on GitHub: https://github.com/tbhaxor/csharp-and-infosec

​

https://preview.redd.it/enw38czwtfo71.png?width=1920&format=png&auto=webp&s=fa01b7f10a2f65ba1b4f7b0bfa4330ca19bf25b8

submitted by /u/tbhaxor
[link] [comments]

hacking: security in practice
Mass scanning activity detected from checking for Azure Linux OMI endpoints vulnerable to remote code execution

https://external-preview.redd.it/-c5lCAkvBeF3XrM8gD8ZTxEC4UTdb47jO2qdfacIS3c.jpg?width=320&crop=smart&auto=webp&s=f776b9f986fc0ab587dd0021c1a2366121897cd6 submitted by /u/egobum
[link] [comments]