Lavasoft Security Bulletin - May 2015: Top Threats
Top20 Blocked Malware
| Position | Ad-Aware detection | % of all threats | Change in ranking |
| 1 | Win32.Worm.Nimda.O | 18.50% | new |
| 2 | Win32.Runouce.B@mm | 6.43% | new |
| 3 | Win32.Ramnit.N | 2.61% | +2.39% |
| 4 | Win32.Sality.3 | 2.60% | +2.08% |
| 5 | Win32.Virtob.Gen.12 | 2.23% | new |
| 6 | Exploit.Html.Iframe.Bof.ABP | 2.03% | new |
| 7 | Gen:Variant.Mikey.11576 | 1.77% | +1.54% |
| 8 | Trojan.Script.628557 | 1.52% | new |
| 9 | Gen:Variant.Zusy.120679 | 1.45% | new |
| 10 | Trojan.LNK.Gen | 1.41% | +1.02% |
| 11 | Trojan.Sinowal.Gen.1 | 0.90% | new |
| 12 | Gen:Variant.Buzy.298 | 0.80% | +0.42% |
| 13 | Win32.Sality.OG | 0.79% | new |
| 14 | Generic.Malware.DHVQ.90047473 | 0.76% | new |
| 15 | Gen:Variant.FakeAV.120 | 0.56% | new |
| 16 | Trojan.Script.Agent.FA | 0.40% | +0.16% |
| 17 | Gen:Heur.MSIL.Krypt.2 | 0.39% | new |
| 18 | Trojan.VBS.UDE | 0.34% | -0.13% |
| 19 | Trojan.JS.Hotfixer.A | 0.32% | new |
| 20 | Win32.Neshta.A | 0.32% | new |
The Top 20 malicious programs blocked on PCs
Malware Prevalence Table ñ May 2015
The table below ranks the most prevalent families seen by Malware Lab's analysis systems in May.
| Position | Ad-Aware detection | % of all threats | Change in ranking |
| 1 | Gen:Variant.Adware.MPlug.38 | 5.33% | new |
| 2 | Gen:Variant.Adware.Kazy.566748 | 5.03% | +4.34% |
| 3 | Gen:Variant.Adware.Mplug.36 | 4.81% | new |
| 4 | Adware.BrowseFox.CW | 4.44% | new |
| 5 | Adware.BrowseFox.CV | 3.18% | new |
| 6 | Gen:Variant.Adware.MPLug.35 | 2.78% | new |
| 7 | Adware.BrowseFox.CX | 2.29% | new |
| 8 | Gen:Variant.Adware.Mplug.37 | 1.47% | +0.46% |
| 9 | Gen:Variant.Adware.Netfilter.2 | 1.29% | +0.45% |
| 10 | Gen:Variant.Adware.MPlug.33 | 1.22% | new |
| 11 | Gen:Variant.Adware.Jatif.294 | 1.21% | new |
| 12 | Gen:Variant.Adware.Kazy.554588 | 1.16% | new |
| 13 | Adware.MPLug.HH | 1.12% | -4.84% |
| 14 | Gen:Variant.Adware.Zusy.122341 | 1.06% | +0.12% |
| 15 | Trojan.Agent.BJVA | 1.00% | new |
| 16 | Gen:Variant.Application.Zusy.139555 | 0.91% | new |
| 17 | Gen:Variant.Adware.MPlug.12 | 0.88% | +0.17% |
| 18 | Adware.BrowseFox.CD | 0.88% | new |
| 19 | Adware.SwiftBrowse.CY | 0.83% | +0.05% |
| 20 | Gen:Variant.Adware.Mplug.28 | 0.82% | +0.04% |
New malicious programs entered the Top 20
Top20 Potentially Unwanted Programs
Below are the Top 20 Potentially Unwanted Programs blocked by Ad-Aware on userís PCs. These are advertising software, browser toolbars, search engines and other programs which change browser start pages and other system settings.
| Position | Ad-Aware detection | % of all threats | Change in ranking |
| 1 | Adware.JS.Crossrider.B | 9.17% | +6.20% |
| 2 | Application.Generic.1265478 | 7.42% | new |
| 3 | Adware.Eorezo.BZ | 4.76% | -0.28% |
| 4 | Adware.SwiftBrowse.CH | 2.69% | -0.95% |
| 5 | Adware.Linkury.N | 1.71% | new |
| 6 | Adware.Linkury.B | 1.43% | new |
| 7 | Adware.JS.Agent.AI | 1.24% | new |
| 8 | Adware.BrowseFox.CT | 1.19% | new |
| 9 | Adware.JS.Agent.AM | 1.19% | new |
| 10 | Adware.JS.Agent.AG | 1.10% | new |
| 11 | Adware.SwiftBrowse.CR | 1.08% | -0.13% |
| 12 | Adware.JS.Agent.AN | 1.08% | new |
| 13 | Application.SearchProtect.BS | 1.05% | +0.24% |
| 14 | Adware.Linkey.B | 1.00% | -1.72% |
| 15 | Gen:Application.Parj.1 | 0.92% | -0.36% |
| 16 | Adware.BrowseFox.CW | 0.88% | new |
| 17 | Adware.BrowseFox.V | 0.80% | -0.62% |
| 18 | Gen:Variant.Adware.Zusy.139627 | 0.78% | new |
| 19 | Adware.BrowseFox.BJ | 0.73% | new |
| 20 | Adware.Linkury.S | 0.69% | new |
Top20 PUPs detected on userís PC
Operating Systems
Infections by OS
Geographic Location
Infections by country of origin
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