Comments (7)
I'll apply it to files only by setting a "filesize" in the condition of this rule. This should help.
from loki.
The rule that triggered was the following one
rule Invoke_Mimikatz {
meta:
description = "Detects Invoke-Mimikatz String"
author = "Florian Roth"
reference = "https://github.com/clymb3r/PowerShell/tree/master/Invoke-Mimikatz"
date = "2016-08-03"
strings:
$x1 = "Invoke-Mimikatz" wide fullword
condition:
1 of them
}
I suppose that the "SearchProtocolHost.exe" process started indexing the LOKI signature files on disk and that's why the "Invoke-Mimikatz" keyword made its way into memory of that process.
from loki.
Is there a way to fix that behaviour or maybe should I tune some false positive Yara rule? thank you for your support
from loki.
Sorry for the late reply. I would simply filter out this specific alert where you analyze the results.
from loki.
How to ensure that are false positives ? Code improvement ?
from loki.
If it's SearchProtocolHost.exe
and the Invoke_Mimikatz
YARA rule matching on that process memory than it is most likely a false positive. I could change the code and exclude some rules from process memory matching. Low prio task.
from loki.
I can confirm that this was triggered also while doing the scan. IMHO, would be useful to have this at least in the documentation somewhere as "Possible FPs".
from loki.
Related Issues (20)
- Suggestion about file skipping due to file size HOT 4
- gen_gcti_cobaltstrike.yar is considered a trojan by kaspersky HOT 1
- Loki scans whole C:/ even with path argument HOT 1
- False positive
- Add YARA repositories manually HOT 2
- Security vulnerabilities in Python dependencies HOT 3
- Installing and running on Linux OS HOT 1
- Force mdmp scan for yara check
- Path issue on Linux with IOCs residing in Windows root folder
- seems that the scanner picks the edge browser HOT 3
- Module not Found rfc5424logging HOT 3
- Loki Flags Nuclei Templates with "WARNING"
- False positive in hacktool_windows_mimikatz_modules rule? HOT 1
- 22 | #include <openssl/asn1.h>
- To find c2 server malicious IP and domains HOT 1
- Generic.Bat.Downloader.1.DDAD1A80 when running upgrade.exe
- False positive (warning) in com.apple.declarations.plist (part of iMazing software)
- Error while initializing Yara rule yara_mixed_ext_vars.yar
- Error while initializing Yara rule thor_inverse_matches.yar
- (Feature) MD5/SHA1/SHA256 whitelist for false alarm files HOT 1
Recommend Projects
-
React
A declarative, efficient, and flexible JavaScript library for building user interfaces.
-
Vue.js
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
-
Typescript
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
-
TensorFlow
An Open Source Machine Learning Framework for Everyone
-
Django
The Web framework for perfectionists with deadlines.
-
Laravel
A PHP framework for web artisans
-
D3
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
-
Recommend Topics
-
javascript
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
-
web
Some thing interesting about web. New door for the world.
-
server
A server is a program made to process requests and deliver data to clients.
-
Machine learning
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
-
Visualization
Some thing interesting about visualization, use data art
-
Game
Some thing interesting about game, make everyone happy.
Recommend Org
-
Facebook
We are working to build community through open source technology. NB: members must have two-factor auth.
-
Microsoft
Open source projects and samples from Microsoft.
-
Google
Google ❤️ Open Source for everyone.
-
Alibaba
Alibaba Open Source for everyone
-
D3
Data-Driven Documents codes.
-
Tencent
China tencent open source team.
from loki.