Sysmon and Alternate Data Streams

Published: 2020-06-29
Last Updated: 2020-06-29 16:09:34 UTC
by Didier Stevens (Version: 1)
0 comment(s)

Sysmon version 11.10, released a couple of days ago, adds support for capturing content of Alternate Data Streams.

When the content of an ADS is text and less than 1 Kb, the content will be logged in the event log.

Here is an example with a download of a file using Microsoft Edge: an ADS named Zone.Identifier will be created for the downloaded file.

With modern browsers, the Zone.Identifier ADS also contains the referrer (ReferrerUrl) and URL for the download (HostUrl), which can be useful for forensics.

I used the following config file for my tests:

<Sysmon schemaversion="4.32">
  <HashAlgorithms>md5,sha256</HashAlgorithms>
  <DnsLookup>False</DnsLookup>
  <ArchiveDirectory>sysmonarchive</ArchiveDirectory>

  <EventFiltering>
    <FileCreateStreamHash onmatch="exclude"/>

    <CreateRemoteThread onmatch="include"/>
    <DnsQuery onmatch="include"/>
    <DriverLoad onmatch="include"/>
    <FileCreate onmatch="include"/>
    <FileCreateTime onmatch="include"/>
    <FileDelete onmatch="include"/>
    <ImageLoad onmatch="include"/>
    <NetworkConnect onmatch="include"/>
    <PipeEvent onmatch="include"/>
    <ProcessAccess onmatch="include"/>
    <ProcessCreate onmatch="include"/>
    <ProcessTerminate onmatch="include"/>
    <RawAccessRead onmatch="include"/>
    <RegistryEvent onmatch="include"/>
    <WmiEvent onmatch="include"/>
  </EventFiltering>
</Sysmon>

 

Didier Stevens
Senior handler
Microsoft MVP
blog.DidierStevens.com DidierStevensLabs.com

0 comment(s)
ISC Stormcast For Monday, June 29th 2020 https://isc.sans.edu/podcastdetail.html?id=7058

Comments

What's this all about ..?
password reveal .
<a hreaf="https://technolytical.com/">the social network</a> is described as follows because they respect your privacy and keep your data secure:

<a hreaf="https://technolytical.com/">the social network</a> is described as follows because they respect your privacy and keep your data secure. The social networks are not interested in collecting data about you. They don't care about what you're doing, or what you like. They don't want to know who you talk to, or where you go.

<a hreaf="https://technolytical.com/">the social network</a> is not interested in collecting data about you. They don't care about what you're doing, or what you like. They don't want to know who you talk to, or where you go. The social networks only collect the minimum amount of information required for the service that they provide. Your personal information is kept private, and is never shared with other companies without your permission
https://thehomestore.com.pk/
<a hreaf="https://defineprogramming.com/the-public-bathroom-near-me-find-nearest-public-toilet/"> public bathroom near me</a>
<a hreaf="https://defineprogramming.com/the-public-bathroom-near-me-find-nearest-public-toilet/"> nearest public toilet to me</a>
<a hreaf="https://defineprogramming.com/the-public-bathroom-near-me-find-nearest-public-toilet/"> public bathroom near me</a>
<a hreaf="https://defineprogramming.com/the-public-bathroom-near-me-find-nearest-public-toilet/"> public bathroom near me</a>
<a hreaf="https://defineprogramming.com/the-public-bathroom-near-me-find-nearest-public-toilet/"> nearest public toilet to me</a>
<a hreaf="https://defineprogramming.com/the-public-bathroom-near-me-find-nearest-public-toilet/"> public bathroom near me</a>
https://defineprogramming.com/
https://defineprogramming.com/
Enter comment here... a fake TeamViewer page, and that page led to a different type of malware. This week's infection involved a downloaded JavaScript (.js) file that led to Microsoft Installer packages (.msi files) containing other script that used free or open source programs.
distribute malware. Even if the URL listed on the ad shows a legitimate website, subsequent ad traffic can easily lead to a fake page. Different types of malware are distributed in this manner. I've seen IcedID (Bokbot), Gozi/ISFB, and various information stealers distributed through fake software websites that were provided through Google ad traffic. I submitted malicious files from this example to VirusTotal and found a low rate of detection, with some files not showing as malware at all. Additionally, domains associated with this infection frequently change. That might make it hard to detect.
https://clickercounter.org/
Enter corthrthmment here...

Diary Archives