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Novel Ransomware Hiding Model Using HEVC Steganography Approach

Computers, Materials & Continua 2022年第1期70卷 1209-1228页

作者： Iman Almomani aala alkhayer Walid El-Shafai Security Engineering Lab Computer Science DepartmentPrince Sultan UniversityRiyadh11586Saudi Arabia Computer Science Department King Abdullah II School for Information TechnologyThe University of Jordan11942Jordan Department of Electronics and Electrical Communications Engineering Faculty of Electronic EngineeringMenoufia UniversityMenouf32952Egypt

Ransomware is considered one of the most threatening *** solutions have focused mainly on discriminating ransomware by analyzing the apps themselves,but they have overlooked possible ways of hiding ransomware apps and making them difficult to be detected and then ***,this paper proposes a novel ransomware hiding model by utilizing a block-based High-Efficiency Video Coding(HEVC)steganography *** main idea of the proposed steganography approach is the division of the secret ransomware data and cover HEVC frames into different *** that,the Least Significant Bit(LSB)based Hamming Distance(HD)calculation is performed amongst the secret data’s divided blocks and cover ***,the secret data bits are hidden into the marked bits of the cover HEVC frame-blocks based on the calculated HD *** main advantage of the suggested steganography approach is the minor impact on the cover HEVC frames after embedding the ransomware while preserving the histogram attributes of the cover video frame with a high *** is due to the utilization of an adaptive steganography cost function during the embedding *** proposed ransomware hiding approach was heavily examined using subjective and objective tests and applying different HEVC streams with diverse resolutions and different secret ransomware apps of various *** obtained results prove the efficiency of the proposed steganography approach by achieving high capacity and successful embedding process while ensuring the hidden ransomware’s undetectability within the video *** example,in terms of embedding quality,the proposed model achieved a high peak signal-to-noise ratio that reached 59.3 dB and a low mean-square-error of 0.07 for the examined HEVC ***,out of 65 antivirus engines,no engine could detect the existence of the embedded ransomware app.

关键词： Ransomware embedding steganography HEVC LSB hamming distance applications apk stego security confidentiality

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Proposed Biometric Security System Based on Deep Learning and Chaos Algorithms

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Computers, Materials & Continua 2023年第2期74卷 3515-3537页

作者： Iman Almomani Walid El-Shafai aala alkhayer Albandari Alsumayt Sumayh S.Aljameel Khalid Alissa Security Engineering Lab Computer Science DepartmentPrince Sultan UniversityRiyadh11586Saudi Arabia Computer Science Department King Abdullah II School of Information TechnologyThe University of Jordan11942Jordan Department of Electronics and Electrical Communications Engineering Faculty of Electronic EngineeringMenoufia UniversityMenouf32952Egypt Computer Science Department Applied CollegeImam Abdulrahman Bin Faisal UniversityP.O.Box 1982Dammam31441Saudi Arabia Computer Science Department College of Computer Science and Information TechnologyImam Abdulrahman Bin Faisal UniversityP.O.Box 1982Dammam31441Saudi Arabia SAUDI ARAMCO Cybersecurity Chair Networks and Communications DepartmentCollege of Computer Science and Information TechnologyImam Abdulrahman Bin Faisal UniversityP.O.Box 1982Dammam31441Saudi Arabia

Nowadays,there is tremendous growth in biometric authentication and cybersecurity ***,the efficient way of storing and securing personal biometric patterns is mandatory in most governmental and private ***,designing and implementing robust security algorithms for users’biometrics is still a hot research area to be *** work presents a powerful biometric security system(BSS)to protect different biometric modalities such as faces,iris,and *** proposed BSSmodel is based on hybridizing auto-encoder(AE)network and a chaos-based ciphering algorithm to cipher the details of the stored biometric patterns and ensures their *** employed AE network is unsupervised deep learning(DL)structure used in the proposed BSS model to extract main biometric *** obtained features are utilized to generate two random chaos *** first random chaos matrix is used to permute the pixels of biometric *** contrast,the second random matrix is used to further cipher and confuse the resulting permuted biometric pixels using a two-dimensional(2D)chaotic logisticmap(CLM)*** assess the efficiency of the proposed BSS,(1)different standardized color and grayscale images of the examined fingerprint,faces,and iris biometrics were used(2)comprehensive security and recognition evaluation metrics were *** assessment results have proven the authentication and robustness superiority of the proposed BSSmodel compared to other existing *** example,the proposed BSS succeeds in getting a high area under the receiver operating characteristic(AROC)value that reached 99.97%and low rates of 0.00137,0.00148,and 3516 CMC,2023,vol.74,no.20.00157 for equal error rate(EER),false reject rate(FRR),and a false accept rate(FAR),respectively.

关键词： Biometric security deep learning AE network 2D CLM cybersecurity and authentication applications feature extraction unsupervised learning

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Morphological and Molecular Characterization of Novel Salt-Tolerant Rice Germplasms from the Philippines and Bangladesh

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Rice science 2019年第3期26卷 178-188,I0003,I0004,I0005页

作者： Wilson F.aala Jr Glenn B.GREGORIO University of the Philippines Los Banos College

To screen for new sources of salinity tolerance, 688 traditional rice varieties from the Philippines and Bangladesh were obtained, and their tolerance to hypersaline conditions at the seedling stage was examined. A total of 29 Philippine lines and 15 Bangladeshi lines were scored as *** assessment(plant height, biomass and Na-K ratio) revealed that among the 44 salt-tolerant accessions, Casibon, Kalagnon and Ikogan had significantly higher relative shoot length difference, relative shoot growth reduction and shoot Na-K ratio than the tolerant check ***, AC and Akundo exhibited significantly higher Na-K ratios than the other genotypes. The genetic diversity of the 44 genotypes was assessed using 34 simple sequence repeat markers. A total of 133 alleles were detected across all loci. Cluster analysis showed that AC, Akundo and Kuplod were clustered along with FL478, indicating a strong genetic relatedness between these genotypes. IR29(susceptible check) was singly separated. The haplotype analysis revealed that none of the 44 genotypes had a similar allele combination as FL478. These accessions are of interest since each genotype might be different from the classical salinity-tolerant Pokkali.

关键词： rice simple sequence repeat Na-K ratio salinity tolerance traditional landrace

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Predicted Functional Shifts Due to Type of Soil Microbiome and Watering of Two Wild Plants in Western Region of Saudi Arabia

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Phyton-International Journal of Experimental Botany 2022年第10期91卷 2249-2268页

作者： Lina Baz aala A.Abulfaraj Manal A.Tashkandi Hanadi M.Baeissa Mohammed Y.Refai Aminah A.Barqawi Ashwag Shami Haneen W.Abuauf Ruba A.Ashy Rewaa S.Jalal Department of Biochemistry Faculty of ScienceKing AbdulAziz UniversityJeddah21589Saudi Arabia Biological Sciences Department College of Science&ArtsKing Abdulaziz UniversityRabigh21911Saudi Arabia Department of Biochemistry College of ScienceUniversity of JeddahJeddahSaudi Arabia Department of Chemistry Al-Leith University College Umm Al Qura UniversityMakkahSaudi Arabia Department of Biology College of SciencesPrincess Nourah bint Abdulrahman UniversityP.O.Box 84428Riyadh11671Saudi Arabia Department of Biology Faculty of Applied ScienceUmm Al-Qura UniversityMakkahSaudi Arabia Department of Biology College of ScienceUniversity of JeddahJeddahSaudi Arabia

The present study aimed to predict differential enrichment of pathways and compounds in the rhizosphere microbiomes of the two wild plants(Abutilon fruticosum and Nitrosalsola vermiculata)and to predict functional shifts in microbiomes due to *** sequencing of 16S rRNA region V3–V4 was done and gene-based microbial compositions were enrolled in PICRUSt to predict enriched pathways and *** results indicated that“ABC transporters”and“Quorum sensing”pathways are among the highest enriched pathways in rhizosphere microbiomes of the two wild plants compared with those of the bulk soil *** highest enriched compounds in soil microbiomes of the two wild plants included five proteins and three enzymes participating in one or more KEGG *** of these eight compounds showed higher predicted enrichment in rhizosphere soil microbiomes,while only one,namely phosphate transport system substrate-binding protein,showed higher enrichment in the surrounding bulk soil *** terms of differentially enriched compounds due to watering,only the dual-specific aspartyl-tRNA(Asn)/glutamyl-tRNA(Gln)amidotransferase subunit A showed higher enrichment in rhizosphere soil of the two wild plants after 24 h of *** of the highly enriched compounds namely branched-chain amino acid transport system ATP-binding protein and branched-chain amino acid transport system substrate-binding protein,are encoded by genes stimulated by the plant’s GABA that participates in conferring biotic and abiotic stresses in plants and improves the plant’s growth *** 3-Oxoacyl-[ACP]reductase,a member of the short-chain alcohol dehydrogenase/reductase(SDR)superfamily,participates in fatty acids elongation cycles and contributes to plant-microbe symbiotic relationships,while enoyl-CoA hydratase has a reverse action as it participates in“Fatty acid degradation”*** methyl-accepting chemotaxis protein is an environmental signal that sense“Bacteri

关键词： Amplicon sequencing PICRUSt KEGG GABA symbionts wild plants

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海龟

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海外英语 2003年第2期 32-33页

作者： aala Lyman 孙红梅

　　Silver ribbons and streams of turquoise melt together in the ocean each day. The water seems palpable1, as if, when I dive in, my skin will be dyed the brilliant hues. If only I had any of the glorious characteris...

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Case Study of Neonatal Cytosteatonecrosis: Clinical Findings and Management

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Open Journal of Pediatrics 2024年第6期14卷 959-964页

作者： Abdessamad Lalaoui Sofia Hamdani Khalid Abi El aala Ghizlane Kassal Fatiha Bennaoui Nadia El Idrissi Slitine Fatima Ezzahra Hazmiri Hanane Rais Fadl Mrabih Rabou Maoulainine Neonatal Intensive Care Unit University Hospital Center Mohammed VI Marrakech Morocco Health Childhood and Development Faculty of Medicine Research Team Cadi Ayyad University Marrakech Morocco Department of Anatomic Pathology Med VI University Hospital Marrakesh Morocco

Cytosteatonecrosis of the newborn (CSNN), though rare, is a benign panniculitis that causes various skin lesions (hardened, purplish plaques/nodules). This condition can occur in infants of diabetic mothers or those who have experienced birth asphyxia and may be unfamiliar to some healthcare practitioners. CSNN can lead to complications such as life-threatening hypercalcemia and metabolic disorders. This case study reports on a two-week-old newborn with CSNN, admitted to the neonatal intensive care unit at the Pediatric Center of Mohammed VI Hospital in Marrakech. The infant, born to a diabetic mother, was initially treated for neonatal respiratory distress. Four days after discharge, a biopsy-confirmed the diagnosis of CSNN, revealing lesions on the scalp, thighs and neck. At 1.5 months, the patient developed a scalp abscess and hypercalcemia. Hypercalcemia was effectively managed with hyperhydration and diuretics, resulting in the normalization of calcium levels. Abdominopelvic and transthoracic cardiac ultrasounds were normal. By six months, the patient’s skin lesions had spontaneously regressed.

关键词： Newborn Cytosteatonecrosis Hypercalcemia

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