On Loki scan start, multiple unterminated regular expression messages occur

[g33k247]

Getting a bunch of these messages when starting a scan:

line 1126, in initialize_yara_rules yara.SyntaxError: line 22: unterminated regular expression

On Windows 11, executing from PowerShell. Once Loki gets past these issues, the scan continues and completes as expected.

[Neo23x0]

The signatures seem to be okay. It's most likely an AV that deleted part of a signature set before the initialisation.

[g33k247]

Here's an example of the errors I'm seeing:

Traceback (most recent call last):
  File "\\vboxsvr\workspace\Loki\loki.py", line 1126, in initialize_yara_rules
yara.SyntaxError: line 22: unterminated regular expression
Traceback (most recent call last):
  File "\\vboxsvr\workspace\Loki\loki.py", line 1126, in initialize_yara_rules
yara.SyntaxError: line 22: unterminated regular expression
Traceback (most recent call last):
  File "\\vboxsvr\workspace\Loki\loki.py", line 1126, in initialize_yara_rules
yara.SyntaxError: line 22: unterminated regular expression
Traceback (most recent call last):
  File "\\vboxsvr\workspace\Loki\loki.py", line 1126, in initialize_yara_rules
yara.SyntaxError: line 22: unterminated regular expression
Traceback (most recent call last):
  File "\\vboxsvr\workspace\Loki\loki.py", line 1126, in initialize_yara_rules
yara.SyntaxError: line 22: unterminated regular expression
Traceback (most recent call last):
  File "\\vboxsvr\workspace\Loki\loki.py", line 1126, in initialize_yara_rules
yara.SyntaxError: line 22: unterminated regular expression
Traceback (most recent call last):
  File "\\vboxsvr\workspace\Loki\loki.py", line 1126, in initialize_yara_rules
yara.SyntaxError: line 22: unterminated regular expression
Traceback (most recent call last):
  File "\\vboxsvr\workspace\Loki\loki.py", line 1126, in initialize_yara_rules
yara.SyntaxError: line 22: unterminated regular expression

[Neo23x0]

I cannot reproduce the error with the current version and the current rule set.

[Neo23x0]

It's also a shit way to report errors not indicating the version number of the software, which OS, the command line, if customer rules are used etc.