Polymorphic Malware

Pairwise Alignment/AVS

Product

Top Five State-of-the-art AVS Products and Our Top Signatures (S)

Detection Ratio (with Accuracy) and

Statistical Measures

JS. Cassandra Virus

AntiVirus Ranked No. 1

Bitdefender Antivirus

Detection Ratio (Accuracy)

1/352 (0.2841%)

Sensitivity/Recall

0.2841%

Specificity

0.00%

Precision

100.00%

F1 Score

0.5666%

AntiVirus Ranked No. 2

Kaspersky Anti-Virus

Detection Ratio (Accuracy)

1/352 (0.2841%)

Sensitivity/Recall

0.2841%

Specificity

0.00%

Precision

100.00%

F1 Score

0.5666%

AntiVirus Ranked No. 3

McAfee AntiVirus

Detection Ratio (Accuracy)

152/352 (43.18%)

Sensitivity/Recall

43.18%

Specificity

0.00%

Precision

100.00%

F1 Score

60.31%

AntiVirus Ranked No. 4

Norton Security

Detection Ratio (Accuracy)

5/352 (1.42%)

Sensitivity/Recall

1.42%

Specificity

0.00%

Precision

100.00%

F1 Score

2.80%

AntiVirus Ranked No. 5

F-Secure Anti-Virus

Detection Ratio (Accuracy)

1/352 (0.2841%)

Sensitivity/Recall

0.2841%)

Specificity

0.00%

Precision

100.00%

F1 Score

0.5666%

Original JS. Cassandra virus and Variant 1

S1

Detection Ratio (Accuracy)

340/352 (96.59%)

Sensitivity/Recall

96.59%

Specificity

0.00%

Precision

100%

F1 Score

98.26%

Variant 1 and Variant 2

S4

Detection Ratio (Accuracy)

339/352 (96.31%)

Sensitivity/Recall

96.31%

Specificity

0.00%

Precision

100%

F1 Score

98.12%