suspicious_compression_tool_parameters

rule suspicious_compression_tool_parameters {
 meta:
    author = "Florian Roth, Samir Bousseaden"
    description = "Detects suspicious command line arguments of common data compression tools  License: https://github.com/Neo23x0/sigma/blob/master/LICENSE.Detection.Rules.md."
    reference = "https://tdm.socprime.com/tdm/info/SVetAYGcvAHb"
    version = "0.01"
    created = "2019/10/15"
    category = "process_creation"
    product = "windows"
    mitre = "collection, t1560.001, exfiltration, t1020, t1002"

  events:
(((re.regex($falsepositive.target.process.command_line, `.* -p.*`) or re.regex($falsepositive.target.process.command_line, `.* -ta.*`) or re.regex($falsepositive.target.process.command_line, `.* -tb.*`) or re.regex($falsepositive.target.process.command_line, `.* -sdel.*`) or re.regex($falsepositive.target.process.command_line, `.* -dw.*`) or re.regex($falsepositive.target.process.command_line, `.* -hp.*`)) and (re.regex($falsepositive.target.file.full_path, `7z.*\.exe`) or re.regex($falsepositive.target.file.full_path, `.*rar\.exe`) or re.regex($falsepositive.target.file.full_path, `.*Command.*Line.*RAR.*`)) and ($falsepositive.metadata.product_event_type = "4688" or $falsepositive.metadata.product_event_type = "1")) and not (re.regex($falsepositive.principal.process.file.full_path, `C:\\Program.*`)))

  condition:
    $falsepositive
}