diff --git a/src/tests/UtilTest/tst_ruletextparser.h b/src/tests/UtilTest/tst_ruletextparser.h
index 02bb9ce3..5c29532d 100644
--- a/src/tests/UtilTest/tst_ruletextparser.h
+++ b/src/tests/UtilTest/tst_ruletextparser.h
@@ -64,6 +64,15 @@ TEST_F(RuleTextParserTest, maxListDepth)
     ASSERT_EQ(p.errorCode(), RuleTextParser::ErrorListMaxDepth);
 }
 
+TEST_F(RuleTextParserTest, emptyComment)
+{
+    RuleTextParser p("#");
+
+    ASSERT_TRUE(p.parse());
+
+    ASSERT_EQ(p.ruleFilters().size(), 0);
+}
+
 TEST_F(RuleTextParserTest, lineIpPort)
 {
     RuleTextParser p("1.1.1.1:53");
@@ -246,3 +255,66 @@ TEST_F(RuleTextParserTest, badFilterName)
 
     ASSERT_EQ(p.errorCode(), RuleTextParser::ErrorBadFilterName);
 }
+
+TEST_F(RuleTextParserTest, badEndOfValueBegin)
+{
+    RuleTextParser p("[1[");
+
+    ASSERT_FALSE(p.parse());
+
+    ASSERT_EQ(p.errorCode(), RuleTextParser::ErrorUnexpectedEndOfValue);
+}
+
+TEST_F(RuleTextParserTest, badEndOfValueEnd)
+{
+    RuleTextParser p("[1]]");
+
+    ASSERT_FALSE(p.parse());
+
+    ASSERT_EQ(p.errorCode(), RuleTextParser::ErrorUnexpectedStartOfLine);
+}
+
+TEST_F(RuleTextParserTest, badEndOfList)
+{
+    RuleTextParser p("{1");
+
+    ASSERT_FALSE(p.parse());
+
+    ASSERT_EQ(p.errorCode(), RuleTextParser::ErrorUnexpectedEndOfList);
+}
+
+TEST_F(RuleTextParserTest, badEndOfValuesList)
+{
+    RuleTextParser p("(1");
+
+    ASSERT_FALSE(p.parse());
+
+    ASSERT_EQ(p.errorCode(), RuleTextParser::ErrorUnexpectedEndOfValuesList);
+}
+
+TEST_F(RuleTextParserTest, badSymboOfListEnd)
+{
+    RuleTextParser p("1}");
+
+    ASSERT_FALSE(p.parse());
+
+    ASSERT_EQ(p.errorCode(), RuleTextParser::ErrorUnexpectedSymboOfListEnd);
+}
+
+TEST_F(RuleTextParserTest, badExtraFilterName)
+{
+    RuleTextParser p("ip dir(1)");
+
+    ASSERT_FALSE(p.parse());
+
+    ASSERT_EQ(p.errorCode(), RuleTextParser::ErrorExtraFilterName);
+}
+
+TEST_F(RuleTextParserTest, badBadSymbol)
+{
+    RuleTextParser p("1\b");
+
+    ASSERT_FALSE(p.parse());
+
+    ASSERT_EQ(p.errorCode(), RuleTextParser::ErrorBadSymbol);
+}
diff --git a/src/ui/util/conf/ruletextparser.cpp b/src/ui/util/conf/ruletextparser.cpp
index 758c35d8..8b2040bc 100644
--- a/src/ui/util/conf/ruletextparser.cpp
+++ b/src/ui/util/conf/ruletextparser.cpp
@@ -317,20 +317,40 @@ bool RuleTextParser::parseBracketValue(RuleCharTypes expectedSeparator)
     resetParsedCharTypes();
 
     if (!nextCharType(CharValueBegin | CharLetter | CharValue,
-                CharLineBreak | CharBracketEnd | expectedSeparator, extraValueEndChars))
+                CharLineBreak | CharBracketEnd | expectedSeparator, extraValueEndChars)) {
+        checkBracketValueEnd();
         return false;
+    }
 
     if (hasParsedCharTypes(CharBracketEnd))
         return false;
 
+    if (!checkBracketValuesSeparator(expectedSeparator))
+        return false;
+
+    const bool expectValueEnd = hasParsedCharTypes(CharValueBegin);
+
+    return parseValue(expectValueEnd);
+}
+
+bool RuleTextParser::checkBracketValuesSeparator(RuleCharTypes expectedSeparator)
+{
     if (!hasParsedCharTypes(expectedSeparator)) {
         setError(ErrorUnexpectedEndOfValuesList, tr("Unexpected end of values list"));
         return false;
     }
 
-    const bool expectValueEnd = hasParsedCharTypes(CharValueBegin);
+    return true;
+}
 
-    return parseValue(expectValueEnd);
+bool RuleTextParser::checkBracketValueEnd()
+{
+    if (!hasParsedCharTypes(CharBracketEnd)) {
+        setError(ErrorUnexpectedEndOfValuesList, tr("Unexpected end of values list"));
+        return false;
+    }
+
+    return true;
 }
 
 bool RuleTextParser::parseValue(bool expectValueEnd)
diff --git a/src/ui/util/conf/ruletextparser.h b/src/ui/util/conf/ruletextparser.h
index c4fa3ba4..2fdd2e1f 100644
--- a/src/ui/util/conf/ruletextparser.h
+++ b/src/ui/util/conf/ruletextparser.h
@@ -108,6 +108,8 @@ private:
 
     void parseBracketValues();
     bool parseBracketValue(RuleCharTypes expectedSeparator);
+    bool checkBracketValuesSeparator(RuleCharTypes expectedSeparator);
+    bool checkBracketValueEnd();
     bool parseValue(bool expectValueEnd);
     bool checkValueEnd(bool &expectValueEnd);