Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

Add Zeroed Header update #3808

Merged
merged 1 commit into from
Oct 9, 2024
Merged

Add Zeroed Header update #3808

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
6 changes: 3 additions & 3 deletions artifacts/definitions/Windows/Forensics/Lnk.yaml
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -118,7 +118,7 @@ parameters:
- name: RiskyExe
description: Regex target exe to flag as risky.
type: regex
default: \\(cmd|powershell|cscript|wscript|rundll32|regsvr32|mshta|wmic|netsh)\.exe$
default: \\(cmd|powershell|cscript|wscript|rundll32|regsvr32|mshta|wmic|conhost)\.exe$


export: |
Expand Down Expand Up @@ -1464,7 +1464,7 @@ sources:
else= False)

LET sus_cli(data) = dict(
`Arguments have ticks` = data=~'''\^|\`''',
`Arguments have ticks` = data=~'''\^|\`|[a-z][\'\"]{2}[a-z]''',
`Arguments have environment variables` = data=~'''\%|\$env:''',
`Arguments have rare characters` = data=~'''\?\!\~\@''',
`Arguments have leading space` = data=~ '^ ',
Expand All @@ -1489,7 +1489,7 @@ sources:
LET add_suspicious = SELECT *, dict(
`Large Size` = SourceFile.Size > SusSize,
`Startup Path` = SourceFile.OSPath =~ '''\\Startup\\''',
`Zeroed Headers` = ( ShellLinkHeader.FileSize=0 or ShellLinkHeader.CreationTime=0),
`Zeroed Headers` = ( ShellLinkHeader.FileSize=0 AND ShellLinkHeader.CreationTime=~'^1601-01' AND len(list=LinkInfo.LinkInfoFlags)=0 ),
`Hidden window` = ShellLinkHeader.ShowCommand = 'SHOWMINNOACTIVE',
`Target Changed path` = lowcase(string=LinkInfo.Target.Path) != lowcase(string=OldPath) AND OldPath,
`Target Changed size` = ( ShellLinkHeader.FileSize - OldSize != 0 ) AND ShellLinkHeader.FileSize AND OldSize,
Expand Down
Loading