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refactor: remove unneeded escapes(in |re block) #3744

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merged 3 commits into from
Dec 3, 2022
Merged

refactor: remove unneeded escapes(in |re block) #3744

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7b1d236
refactor: remove unnesessary escape.
fukusuket Dec 2, 2022
a05742b
refactor: remove unnesessary escape.
fukusuket Dec 2, 2022
ead6831
update modified date.
fukusuket Dec 2, 2022
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4 changes: 2 additions & 2 deletions rules/windows/powershell/powershell_module/posh_pm_invoke_obfuscation_clip.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -9,7 +9,7 @@ references:
- https://github.com/Neo23x0/sigma/issues/1009 #(Task 26)
author: Jonathan Cheong, oscd.community
date: 2020/10/13
modified: 2022/11/27
modified: 2022/12/02
tags:
- attack.defense_evasion
- attack.t1027
Expand All @@ -21,7 +21,7 @@ logsource:
definition: PowerShell Module Logging must be enabled
detection:
selection_4103:
Payload|re: '.*cmd.{0,5}(?:\/c|\/r).+clip(?:\.exe)?.{0,4}&&.+clipboard]::\(\s\\\"\{\d\}.+\-f.+\"'
Payload|re: '.*cmd.{0,5}(?:/c|/r).+clip(?:\.exe)?.{0,4}&&.+clipboard]::\(\s\\"\{\d\}.+-f.+"'
condition: selection_4103
falsepositives:
- Unknown
Expand Down
4 changes: 2 additions & 2 deletions rules/windows/powershell/powershell_module/posh_pm_invoke_obfuscation_stdin.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -9,7 +9,7 @@ references:
- https://github.com/Neo23x0/sigma/issues/1009 #(Task 25)
author: Jonathan Cheong, oscd.community
date: 2020/10/15
modified: 2022/11/29
modified: 2022/12/02
tags:
- attack.defense_evasion
- attack.t1027
Expand All @@ -21,7 +21,7 @@ logsource:
definition: PowerShell Module Logging must be enabled
detection:
selection_4103:
Payload|re: '.*cmd.{0,5}(?:\/c|\/r).+powershell.+(?:\$\{?input\}?|noexit).+\"'
Payload|re: '.*cmd.{0,5}(?:/c|/r).+powershell.+(?:\$\{?input\}?|noexit).+"'
condition: selection_4103
falsepositives:
- Unknown
Expand Down
4 changes: 2 additions & 2 deletions rules/windows/powershell/powershell_module/posh_pm_invoke_obfuscation_var.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -9,7 +9,7 @@ references:
- https://github.com/Neo23x0/sigma/issues/1009 #(Task 24)
author: Jonathan Cheong, oscd.community
date: 2020/10/15
modified: 2022/11/29
modified: 2022/12/02
tags:
- attack.defense_evasion
- attack.t1027
Expand All @@ -21,7 +21,7 @@ logsource:
definition: PowerShell Module Logging must be enabled
detection:
selection_4103:
Payload|re: '.*cmd.{0,5}(?:\/c|\/r)(?:\s|)\"set\s[a-zA-Z]{3,6}.*(?:\{\d\}){1,}\\\"\s+?\-f(?:.*\)){1,}.*\"'
Payload|re: '.*cmd.{0,5}(?:/c|/r)(?:\s|)"set\s[a-zA-Z]{3,6}.*(?:\{\d\}){1,}\\"\s+?-f(?:.*\)){1,}.*"'
condition: selection_4103
falsepositives:
- Unknown
Expand Down
4 changes: 2 additions & 2 deletions rules/windows/powershell/powershell_module/posh_pm_invoke_obfuscation_via_var.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -9,7 +9,7 @@ references:
- https://github.com/Neo23x0/sigma/issues/1009 #(Task27)
author: Timur Zinniatullin, oscd.community
date: 2020/10/13
modified: 2022/11/29
modified: 2022/12/02
tags:
- attack.defense_evasion
- attack.t1027
Expand All @@ -21,7 +21,7 @@ logsource:
definition: PowerShell Module Logging must be enabled
detection:
selection_4103:
Payload|re: '(?i).*&&set.*(\{\d\}){2,}\\\"\s+?\-f.*&&.*cmd.*\/c' # FPs with |\/r
Payload|re: '(?i).*&&set.*(\{\d\}){2,}\\"\s+?-f.*&&.*cmd.*/c' # FPs with |\/r
condition: selection_4103
falsepositives:
- Unknown
Expand Down
4 changes: 2 additions & 2 deletions rules/windows/powershell/powershell_script/posh_ps_invoke_obfuscation_clip.yml
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -6,7 +6,7 @@ references:
- https://github.com/Neo23x0/sigma/issues/1009 #(Task 26)
author: Jonathan Cheong, oscd.community
date: 2020/10/13
modified: 2022/11/27
modified: 2022/12/02
tags:
- attack.defense_evasion
- attack.t1027
Expand All @@ -18,7 +18,7 @@ logsource:
definition: Script block logging must be enabled
detection:
selection_4104:
ScriptBlockText|re: '.*cmd.{0,5}(?:\/c|\/r).+clip(?:\.exe)?.{0,4}&&.+clipboard]::\(\s\\\"\{\d\}.+\-f.+\"'
ScriptBlockText|re: '.*cmd.{0,5}(?:/c|/r).+clip(?:\.exe)?.{0,4}&&.+clipboard]::\(\s\\"\{\d\}.+-f.+"'
condition: selection_4104
falsepositives:
- Unknown
Expand Down
4 changes: 2 additions & 2 deletions rules/windows/powershell/powershell_script/posh_ps_invoke_obfuscation_var.yml
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -6,7 +6,7 @@ references:
- https://github.com/Neo23x0/sigma/issues/1009 #(Task 24)
author: Jonathan Cheong, oscd.community
date: 2020/10/15
modified: 2022/11/29
modified: 2022/12/02
tags:
- attack.defense_evasion
- attack.t1027
Expand All @@ -18,7 +18,7 @@ logsource:
definition: Script block logging must be enabled
detection:
selection_4104:
ScriptBlockText|re: '.*cmd.{0,5}(?:\/c|\/r)(?:\s|)\"set\s[a-zA-Z]{3,6}.*(?:\{\d\}){1,}\\\"\s+?\-f(?:.*\)){1,}.*\"'
ScriptBlockText|re: '.*cmd.{0,5}(?:/c|/r)(?:\s|)"set\s[a-zA-Z]{3,6}.*(?:\{\d\}){1,}\\"\s+?-f(?:.*\)){1,}.*"'
condition: selection_4104
falsepositives:
- Unknown
Expand Down
4 changes: 2 additions & 2 deletions rules/windows/powershell/powershell_script/posh_ps_invoke_obfuscation_via_var.yml
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -6,7 +6,7 @@ references:
- https://github.com/Neo23x0/sigma/issues/1009 #(Task27)
author: Timur Zinniatullin, oscd.community
date: 2020/10/13
modified: 2022/11/29
modified: 2022/12/02
tags:
- attack.defense_evasion
- attack.t1027
Expand All @@ -18,7 +18,7 @@ logsource:
definition: Script block logging must be enabled
detection:
selection_4104:
ScriptBlockText|re: '(?i).*&&set.*(\{\d\}){2,}\\\"\s+?\-f.*&&.*cmd.*\/c' # FPs with |\/r
ScriptBlockText|re: '(?i).*&&set.*(\{\d\}){2,}\\"\s+?-f.*&&.*cmd.*/c' # FPs with |\/r
condition: selection_4104
falsepositives:
- Unknown
Expand Down