Selected viruses, spyware, and other threats: sorted alphabetically
- Saburex.A
- Saburex.A
- Salim.A
- Salim.A
- Sality.NAJ
- Sality.NAJ
- Sality.NAO
- Sality.NAO
- Sality.NAR
- Sality.NAR
- Sality.NAU
- Sality.T
- Sampo
- San.A
- San.A
- Sarampo
- Sargo.A
- Sargo.A
- Sasser.A
- Sasser.A
- Sasser.B
- Sasser.B
- Sasser.C
- Sasser.C
- Satellite viruses
- Satria
- Scano.AQ
- Scano.NBC
- Scano.NBC
- Scano.U
- Scold.A
- Scold.A
- Seeker
- Seeker
- Seeker.A
- Seliuq.A
- Seliuq.D
- Seliuq.D
- Semtex
- Service.A
- Service.A
- She Has
- She_Has
- Shimg
- Shimgapi
- Sibylle
- Sinala.A
- Sinala.A
- Singapore
- Sircam
- Sircam
- Sirefef.A
- SKA
- SKA
- Slammer
- Sleepwalker
- Slimak
- Slow
- Slow
- Smac.D
- Smac.D
- Small
- Small.AG
- Small.CVQ
- Small.L
- Small.NGK
- Small.ZL
- Smeg
- Smithfraud.gen
- Smithfraud.gen
- Sober.A
- Sober.A
- Sober.D
- Sober.D
- Sober.G
- Sober.G
- Sober.I
- Sober.I
- Sober.K
- Sober.K
- Sober.N
- Sober.N
- Sober.O
- Sober.O
- Sober.R
- Sober.Y
- Sober.Z
- Sobig.A
- Sobig.A
- Sobig.B
- Sobig.B
- Sobig.C
- Sobig.C
- Sobig.D
- Sobig.D
- Sobig.F
- Sobig.F
- Socka
- Solar
- Soraci.A
- Sorry.C
- Sorry.C
- Spaces.1445.A
- Spaces.1445.A
- Spatet.A
- Spatet.C
- Spy.Agent.NRS
- Spy.Agent.NSO
- Spy.Banker.BIG
- Spy.Banker.BIG
- Spy.Banker.SCW
- Spy.Banker.UEP
- Spy.Bebloh.A
- Spy.BZub.NAC
- Spy.BZub.NAC
- Spy.Delf.OKH
- Spy.Goldun.GU
- Spy.Goldun.GU
- Spy.Silon.AA
- Spy.SpyEye.B
- Spy.Swisyn.AC
- Spy.Swisyn.AD
- Spy.Swisyn.AH
- Spy.Swisyn.AI
- Spy.Swisyn.Q
- Spy.Ursnif.A
- Spy.Zbot.JF
- Spy.Zbot.QT.Gen
- Spy.Zbot.UN
- Spy.Zbot.VI
- Spy.Zbot.VJ
- Spy.Zbot.VY
- Spy.Zbot.YW
- SQL.Helkern
- SQL.Helkern
- SQL.Slammer
- SQL.Slammer
- SQLExp
- SQLExp
- Squared.A
- Squared.A
- Squared.B
- Squared.B
- SSIWG
- SSIWG
- SSIWG.R
- SSIWG.R
- SSIWG.S
- SSIWG.S
- Stages.A
- Stages.A
- Star
- StartPage.NLR
- StartPage.NSH
- StartPage.NVB
- Stator.62464
- Stator.A
- Stator.A
- Stealth
- Stoned
- Stoned.Empire.Monkey
- StonedBoot.A
- Story.A
- Story.A
- Story.A
- Stration
- Stration
- Stration.AA
- Stration.AA
- Stration.EH
- Stration.EH
- Stration.ET
- Stration.ET
- Stration.FG
- Stration.FG
- Stration.HY
- Stration.HY
- Stuxnet.A
- Suicide
- Supova.Worm
- Surnova.A
- Surnova.A
- Surnova.D
- Surnova.D
- Surround.A
- Surround.A
- SVL
- Swen.A
- Swen.A
