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USB cable driver CD triggers malware alert; probably false positive

Could files on the driver CD included with some USB radio programming cables be triggering a malware alert?

It’s a possibility in one case, according to James, K7NEO. He apparently stumbled upon the warning yesterday after running a check on the driver CD he had received with his USB programming cable.

“I was excited to get my radio, but I erred on the side of caution and scanned the CD that came with it,” wrote James. “I can’t say it’s 409shop’s fault as I have no clue who did what — just giving everyone a heads-up.”

After receiving a warning from his desktop virus scanner indicating that the files could contain malware called “Trojan.ADH.2,” James ran the files through VirusTotal, a service that checks many different anti-virus programs simultaneously. Of the 40 services tested, he said that 23 indicated that the file was possibly suspect. We analyzed the same USB driver software available as an online download from both 409shop and a US distributor and neither showed as infected (VirusTotal showed 0 positive of 19 tested). It is also very possible, however, that this alert is a false positive and is being triggered erroneously.

Even if it’s not a false positive, Trojan.ADH.2 is a low-level threat and easy to remove if it were to infect your computer, according to Symantec’s website. The episode, however, has made James think twice about installing drivers, even from supposedly trusted sources.

“What really hit home for me was the common sense of never blindly trusting a source of data or files. You should always scan for threats,” he said.

In some cases it may be better to download drivers from the seller’s or manufacturer’s website directly versus using accompanying CDs. Not only are these often the latest and most up-to-date versions, they can also be more easily scanned through an online service (like VirusTotal) before downloading.

Editor’s Update: Jim, KC9HI purchased a programming cable from 409shop which came with a driver CD. He scanned the CD and found no viruses or malware. Not sure what to make of this other than to assume that the original case was some kind of false positive.

Heard back from Carol at 409shop. She didn’t indicate whether or not they had received other reports, but did offer up their website driver download page as an alternative:

http://www.409shop.com/shop_displaynews.php?id=292

Fire!

Photo made when I arrived to send to my XYL.

I was just finishing diner today when my colleague phoned that the shop I work was on fire. I didn’t believe him at first but he was very seriously and told me could see the smoke from were he did drive. That was a distance of about 15 km. I jumped into the car and was astonished when I arrived. You see for yourself:


http://112groningen.nl/Groningen/nieuws/18259/zeer-grote-brand-in-uithuizen-video.html


Luckely no personal injuries, just material…

HF Vertical fence mounted, Ugly-Balun, & extra band

I bought this used Hy-gain 18AVT 5-band (80/40/20/15/10m) vertical in the mid 80’s. I mounted it 12” off the ground in California, it sort of worked but I was NOT impressed with few DX contacts. Now with +40yrs of HAM’ing, all the internet articles, and QSO’s that continue to tout HF verticals being the theoretical best antenna for DX it was time to resurrect my moth-ball from the rafters. Here is what I did to restore my 18AVT, making it one of my NEW FAVORITE HF antennas at my Ohio country home.

First, I refurbished the antenna making all joints shine, again. Applied liberal amounts of Penetrox to all joints, replaced all clamps with stainless steel clamps, made new top hat radials (using copper coated steel brazing rods – bird strong), cleaned up the 80m coil and re-hot glued it back together. I replaced the old stinger cut for 3925 with a new stinger cut/tuned for 3800 (what a hassle that was to buy from MFJ/Hy-gain). Course adjusted all traps to cover “my” SSB selected centers; 28,500, 21,275, 14,220, 7,180, & 3,800. Mounted and re-tuned all traps starting at 10m working down to get a 1:1 on all selected centers using a MFJ-269. It’s a lot of up-down work (why I use wing nuts on the U mounts) but worth the time. I use nylon guy rope for added stability due to serious open county Ohio winds.)

I dislike ground radials due to all the required work to install properly; so here is where I was going to experiment. I mounted the AVT to the fence post of our new chain-link fence. (Recently we installed a fenced area behind our house-garage to allow our Jack Russell Terriers free but controlled roaming then installed doggy doors to the area. One of my better home improvements that ‘bought’ me favorable accolades from my XYL!) The 5’ chain-link fence is mounted at 4’ height (burying one foot into the ground for anti-dog dig-out). The near house section is 18’ long (up to the side gate) where the AVT is mounted.

I’ve read about the attributes of the Ugly-Balun, here was my opportunity to test it.

http://www.hamuniverse.com/balun.html

My Ubalun is made on 4” PVC with 26 wraps of RG-8x (~30‘ of wrap), used hot glue at the holes and electrical tape on the ends – easy. Bent up some mounts and attached it to the fence – high enough to insure the lawn tractor misses it too. The fence has an added bonus of providing a nice off ground coax run to the house.

The Ugly-Balun really made my vertical a performer. I now got into EU, Med, Africa, and Asia (as well as all points North America). This vertical NOW impressed me and was living up to vertical DX claims. Using my IC-746P and MFJ-989c I was making solid DX contacts even during flaky band conditions. I only need to use the tuner for 75m outside 3725-3875 and the extreme edges of 40m SSB due to >2.5:1. The recheck of my ATV center frequencies showed all to be 1:1.

But I was still not happy with the 18AVT as it is only five bands (80/40/20/15/10m), my favorite day time band is 17m.

On the internet I’d come across articles on how to “add-a-band” to a vertical. These articles were so oblivious and easy to do, I had to try. I made the brackets (adding my own touches to improve mechanical strength).

http://www.hamuniverse.com/5btvmodkk5id.html

I only use this string-pulley to tune in the quarter wave 17m (starting at 13.5’) element length and pruning it down to get 1:1 VSWR @ 18.135 MHz. I replaced this string with a SS spring between the PVC and egg insulator, adjusting the PVC mount position to apply only moderate spring tension. Once again, I rechecked all other bands for 1:1 VSWR at my selected center frequencies and found no affects or adjustments needed.

In theory, the actual element connection point is at the aluminum hole in the ‘L’, but I ran the stranded copper 14AWG Radio Shack antenna wire (with soldered eye-lug) to the mounting clamp to insure conductivity and minimize oxidation impacts. The hole may need to be readdressed (with a fixed bolt/nut) if I find friction wear after this winter to the 17m wire element at the hole.

Here is my restored 18AVT SIX band vertical with Ugly-Balun fence mounted.

An SDR receiver for $20? Yes!

This looks like a lot of fun, and the price is certainly right! It uses the popular (and cheap!)  DVB-T Digital TV USB Dongle Stick.

From the video description:

Download it here: http://spench.net/r/USRP_Interfaces
http://twitter.com/spenchdotnet

Compatible devices should be: ezcap, Hama nano & Terratec NOXON (get the first two as it has a better tuner – the Elonics 4000, same as FUNcube Dongle, broadest frequency range: 64-1700 MHz).

This all started here (info & code): http://sdr.osmocom.org/trac/wiki/rtl-sdr

My ExtIO plugin also supports all USRPs, the FUNcube Dongle and network streaming using BorIP (see it here: http://www.youtube.com/watch?v=_2PaSeR-4Ck). You can also send the received baseband data over the network to GNU Radio using the UDP Source block.

And the winner of the Baofeng UV-5R is…

Well, it’s been a week and that means our March giveaway has come to an end. The good news: we get to announce a winner!

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CQ WPX SSB 2012

Like always this is my last contest before the summer and before I dismantle the horizontal loop antenna. Unfortenately I was a little exhausted from work last couple of weeks. No time for radio except once and a while with my little Baofeng HT on the bike. Besides that family life is getting more and more important as our little QRP Anneli is growing up fast, that means less time for the radio hobby. Anyway I had a difficult start at Saturday having no patience to work real DX, I was so tired I stopped at about 150 QSOs. Sunday was a lot better after a reasonable night sleep, although I didn’t have time till the afternoon I made 410 QSOs in the end with 80 DXCC in total on the list. Working a new DXCC (number 200) was my goal and at the end I managed that. I worked Z21BB (Zimbabwe) and TO7BC (Mayotte Isl.) both on 10m as “new” all band DXCCs. As the propagation was really good I concentrated my efforts on the high bands. I left 40, 80 and 160m for Sunday evening as I didn’t expect to hear many “new” DXCC for me at those bands. One thing did surprise me and that was a QSO with Japan on 20m Saturday evening I heard several VK stations as well on that time, very unusual and I guess it was all longpath propagation. I think I missed a lot of stations as well since I coudn’t be on the radio early in the morning, but as always I had a lot of fun in this DX contest.


You can find a log analysis here…


Some highlights:


10m: JA0JHA (Japan), B7P (China), V55V (Namibia), TR8CA (Gabon), PZ5P (Surinam), Z21BB (Zimbabwe), TO7BC (Mayotte), YB8Y(Indonesia), 

15m: VP52V (Turks & Caicos Isl.), JT5DX (Mongolia), TO5K (Martinique), KP2TM (US Virgin Isl.), WH7M (Hawaii)  

20m: JE1ZWT (Japan), 9Y4W (Trinidad & Tobago)

80m: UP2L (Kazakhstan)


Win a Baofeng UV-5R

AmateurRadio.com is offering a free prize drawing!

With the help of our very generous sponsor,
Import Communications (formerly Wouxun.us),
we’re giving away a
Baofeng UV-5R Dual-Band HT
+ a Free USB Programming Cable!

(144/440 MHz)
This is a nearly US$85 value.
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All licensed hams in the U.S. and Canada are eligible to enter
Shipping to US and Canada included. Canadian winners responsible for any duties and taxes.

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  • Matt W1MST, Managing Editor