PeerHunter: Detecting Peer-to-Peer Botnets through Community Behavior Analysis

Peer-to-peer (P2P) botnets have become one of the major threats in network security for serving as the infrastructure that responsible for various of cyber-crimes. Though a few existing work claimed to detect traditional botnets effectively, the problem of detecting P2P botnets involves more challenges. In this paper, we present PeerHunter, a community behavior analysis based method, which is capable of detecting botnets that communicate via a P2P structure. PeerHunter starts from a P2P hosts detection component. Then, it uses mutual contacts as the main feature to cluster bots into communities. Finally, it uses community behavior analysis to detect potential botnet communities and further identify bot candidates. Through extensive experiments with real and simulated network traces, PeerHunter can achieve very high detection rate and low false positives.Comment: 8 pages, 2 figures, 11 tables, 2017 IEEE Conference on Dependable and Secure Computin

Nothing About Us Without Us: Combining Professional Knowledge with Service User Experience in Training about Mental Health and Learning Disabilities

Recent policy documents relating to people with learning disabilities have proposed that they be more fully included in generic mental health care provision. In practice such inclusion has been slow to proceed, hampered by factors which appear to include lack of knowledge and confidence on the part of generic mental health practitioners. Policy documents have also recommended training of practitioners by people with learning disabilities, which has been found to impact positively on confidence and attitudes. This study reports on a training session delivered to ‘Improving Access to Psychological Therapies’ practitioners by a service user with learning disabilities who has accessed mental health services, together with a clinical psychologist and an honorary assistant psychologist. The practitioners were asked to rate their knowledge about and confidence in working with people with learning disabilities before and after the training. Participants rated themselves as having significantly greater knowledge and confidence following the training, and many of the qualitative reasons given for these changes mentioned the contribution of the service user. This paper includes details of her particular contribution to the training, together with her reflections on the experience of joint training, given in an interview with the assistant psychologist. It is concluded that joint training needs to be developed and its impact further researched

Laxmannia morrisii Keighery (Anthericaceae) a synonym of L. squarrosa Lindl not a native of Tasmania

In the course of preparation of the account of the Liliaceae for Part 4B of The Students Flora of Tasmania (Curtis & Morris 1994), an unmounted specimen of a Laxmannia was found in the collection at the Tasmanian Herbarium (HO) (pI. 1). Accompanying the specimen was a note in the handwriting of Dr Winifred Curtis giving the collection details "WD.J. Snug Plains or Middlesex Plains? Jan 1960". "WD.J." referred to Professor William D. Jackson. A later addition to the note indicated that Professor Jackson thought that it may have been collected at Snug Plains, probably near Grey Mountain

Cryptandra exilis sp. nov. (Rhamnaceae), a new species from eastern Tasmania

Cryptandra exilis sp. nov. (Rhamnaceae), a new species from eastern Tasmania, is described and figured. The new species has affinities with C. alpina Hook. f. to which it is compared