diff --git a/lib/rex/text/hex.rb b/lib/rex/text/hex.rb
index 7be5348..20c8a70 100644
--- a/lib/rex/text/hex.rb
+++ b/lib/rex/text/hex.rb
@@ -166,6 +166,25 @@ def self.dehex!(str)
       str.gsub!(regex) { |x| x[2,2].to_i(16).chr }
     end
 
+    #
+    # Converts a string to a comma-separated hex byte sequence suitable for
+    # use in assembly `db` directives.
+    #
+    # @example
+    #   Rex::Text.to_hex_cstring("hi")                  # => "0x68, 0x69, 0x00"
+    #   Rex::Text.to_hex_cstring("")                    # => "0x00"
+    #   Rex::Text.to_hex_cstring("hi", nullbyte: false) # => "0x68, 0x69"
+    #   Rex::Text.to_hex_cstring("", nullbyte: false)   # => ""
+    #
+    # @param str [String] The string to convert
+    # @param nullbyte [Boolean] Whether to append a null terminator (default: true)
+    # @return [String] Comma-separated hex bytes
+    def self.to_hex_cstring(str, nullbyte: true)
+      bytes = str.to_s.bytes
+      bytes.push(0) if nullbyte
+      bytes.map { |byte| '0x%02x' % byte }.join(', ')
+    end
+
     private
 
     #
diff --git a/spec/rex/text/hex_spec.rb b/spec/rex/text/hex_spec.rb
index 6ce35b8..b47bf22 100644
--- a/spec/rex/text/hex_spec.rb
+++ b/spec/rex/text/hex_spec.rb
@@ -3,6 +3,34 @@
 require 'timeout'
 
 RSpec.describe Rex::Text do
+  describe ".to_hex_cstring" do
+    it 'should return just a null terminator for an empty string' do
+      expect(described_class.to_hex_cstring("")).to eq("0x00")
+    end
+
+    it 'should return hex bytes with a null terminator for a non-empty string' do
+      expect(described_class.to_hex_cstring("AB")).to eq("0x41, 0x42, 0x00")
+    end
+
+    it 'should handle nil by treating it as an empty string' do
+      expect(described_class.to_hex_cstring(nil)).to eq("0x00")
+    end
+
+    it 'should handle binary data' do
+      expect(described_class.to_hex_cstring("\xff\x00\x01")).to eq("0xff, 0x00, 0x01, 0x00")
+    end
+
+    context 'with nullbyte: false' do
+      it 'should return an empty string for an empty input' do
+        expect(described_class.to_hex_cstring("", nullbyte: false)).to eq("")
+      end
+
+      it 'should return hex bytes without a null terminator' do
+        expect(described_class.to_hex_cstring("AB", nullbyte: false)).to eq("0x41, 0x42")
+      end
+    end
+  end
+
   describe ".hexify" do
     let(:wrap) { 60 }
     it 'should wrap at the specified columns' do