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1st Version of collection transforming #8

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1st Version of collection transforming #8

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19 changes: 18 additions & 1 deletion classes/DetectionRuleConverter.py
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Original file line number Diff line number Diff line change
Expand Up @@ -39,7 +39,24 @@ def addToSummaryIndex(search, sigma2splunkalertconfig, sigma_rule):
@staticmethod
def performSearchTransformation(transformations, search, sigma_rule):
for trans in transformations:

# Search Transformation to combine collections with "OR"
if trans == "or_collections":
collectionsearch = ""
splitted = search.split("\n")
#search will only get changed if its collection (multiline)
if (len(splitted) > 2):
if (len(splitted[-1]) == 0): del splitted[-1] # delete last entry (empty line)
last = splitted[-1]
for line in splitted:
verticalindex = line.find("|")
if (verticalindex != -1):
collectionsearch = collectionsearch + line[:verticalindex]
else:
collectionsearch = collectionsearch + line
#dont "OR" the last line
if (line!=last):collectionsearch = collectionsearch + " OR "
search = collectionsearch + "\n" #readd the deleted new line at the end

# Search Transformation to add whitelist in front of table or transforming command (for better whitelisting)
if trans == "add_whitelist_in_front":
file_name = sigma_rule["title"] + "_whitelist.csv"
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