Wednesday, July 15, 2009

Spammers Abusing URL Shortening Services

We've previously warned about the dangers of following "Tiny URLs" on Twitter. With only 140 characters to use in your message, many Twitterers use URL shortening services to save their precious characters. Unfortunately, for most people you have no idea where that click is going to take you until you click on it and get forwarded by the URL shortening service. Its a bit like playing Russian roulette. Click the shortened URLs, and you may get informative news stories, insightful blog articles, pornography, or a new virus!

At the UAB Spam Data Mine we've seen a few of these Tiny URLs used in spam, but now we have our first major campaign that is exploiting them in a highly organized way.



Bingo Palms has a current spam campaign underway which involves a large number of these URL shorteners, including:

aafter.us
bit.ly
is.gd
jh.to
jtty.com
myurl.in
o.ly
phaze.me
sturly.com
tcbp.net
tlink.me
urltwitter.com


So far we've seen almost a thousand of these spam messages, and have encountered 453 unique URLs at this point. Here are the subjects that are being used in this spam campaign:

Subject: $10 free deposit
Subject: $5000 Jackpot waiting for you!
Subject: 200% bonus on every deposit
Subject: 75 and 90 Ball Bingo
Subject: Become A Bingo Hustler
Subject: Become A Winner Today
Subject: Become A Winner With Bingo
Subject: b-i-n-g-o for you!
Subject: Bingo has never been easier.
Subject: Bing-o Was Her Name-o
Subject: Do you like to play bingo online?
Subject: Enjoy Bingo Online
Subject: Ever wanted to play Bingo for Cash ?
Subject: Gamble online? Read me!
Subject: Gamble With Bingo
Subject: Gamble? Like to play online?
Subject: Hot 9-Real SLot Machines! $25,000 Jackpot
Subject: Hustle Online. Play Bingo.
Subject: Like Bingo? Win $
Subject: Nickel, Dime, Quarter, & High Roller Games!
Subject: Nightly Events for CASH Prizes
Subject: Online diplomas here.
Subject: Play Bing0 Online
Subject: Play Bingo Now
Subject: Play Bingo Today
Subject: play online
Subject: Play Online Now
Subject: Play Online, Win Today
Subject: Someone has invited you to a game of Bingo
Subject: Something For You. Play Online.
Subject: Vehicle Warranty - 60% off
Subject: Want to play bingo online and win CASH ?
Subject: Win With Bingo
Subject: You have been invited to a Bingo game!

We see this campaign as a dangerous precedence which could be followed by other spammers to make our efforts to block their spam more difficult. As one would expect, the spammer, in addition to cheating the affiliate program, and offering "probably illegal" gambling to his email recipients, is delivering his spam message through a world-wide botnet of compromised computers. Just in our spam samples, we have spam for this campaign sent from 698 different computers in 43 different countries around the world.

Afrinic countries of CI, MA, SD, ZA
APNIC countries of BD, HK, ID, IN, JP, KR, PK, TH, TW, VN
ARIN countries of US (only 6 machines)
LACNIC countries of AR, BR, CL, CO, MX, SV, VE
RIPENCC countries of AM, AZ, BY, DE, EU, GR, HR, HU, IL, IQ, IR, IT, KZ, MD, PL, PT, RO, RS, RU, UA, UZ

Despite a broad smattering of countries, 43% of our spam came from Brazil, 20% from Russia, 13% from the Ukraine, 7% from India, and 2% from Italy. No other country represented more than 1% of the spam we received in this campaign.


Here are the URLs that we have seen so far in this campaign:

http://aafter.us/0oysiA
http://aafter.us/15Exas
http://aafter.us/3d3V9e
http://aafter.us/459UeB
http://aafter.us/4fOecg
http://aafter.us/4R2udg
http://aafter.us/4YzvqA
http://aafter.us/6DvEsN
http://aafter.us/78Lj60
http://aafter.us/9GQEkZ
http://aafter.us/9TOYVb
http://aafter.us/A4Oc0S
http://aafter.us/AxwsYK
http://aafter.us/b9rkEe
http://aafter.us/bezEO3
http://aafter.us/BIyffd
http://aafter.us/ckqW55
http://aafter.us/cyHq06
http://aafter.us/D8kzvt
http://aafter.us/DBYJNk
http://aafter.us/dpJxBc
http://aafter.us/ew7332
http://aafter.us/FIDLQs
http://aafter.us/FJLPyM
http://aafter.us/fTJDW4
http://aafter.us/jptgOx
http://aafter.us/JwmKyP
http://aafter.us/jYg3j6
http://aafter.us/kdOH1o
http://aafter.us/knACii
http://aafter.us/motFQJ
http://aafter.us/n8quI5
http://aafter.us/N8U0Bq
http://aafter.us/P8o6Kn
http://aafter.us/PI3BvT
http://aafter.us/qDDkB6
http://aafter.us/QfSfkf
http://aafter.us/RH3z2F
http://aafter.us/rNqm6H
http://aafter.us/sEwQMU
http://aafter.us/siykT5
http://aafter.us/sY6RN1
http://aafter.us/TXgsXd
http://aafter.us/UxbBYV
http://aafter.us/vcmHnv
http://aafter.us/XwUWd3
http://aafter.us/YP4zHn
http://aafter.us/YUXbB4
http://aafter.us/ZjUAOw
http://bit.ly/10VJRX
http://bit.ly/11oYQ8
http://bit.ly/14egZi
http://bit.ly/15piKn
http://bit.ly/16aOsd
http://bit.ly/16iqi3
http://bit.ly/16temb
http://bit.ly/19AQlF
http://bit.ly/37LQeX
http://bit.ly/4mrqW9
http://bit.ly/8Tbvz
http://bit.ly/9K5r5
http://bit.ly/B0S1U
http://bit.ly/b3JyJ
http://bit.ly/E7hiD
http://bit.ly/eBlww
http://bit.ly/Ex5GL
http://bit.ly/EzZV4
http://bit.ly/FIolK
http://bit.ly/gj9Py
http://bit.ly/gQxNZ
http://bit.ly/ih7Di
http://bit.ly/iwdpY
http://bit.ly/joj8y
http://bit.ly/lhPp7
http://bit.ly/MOXP7
http://bit.ly/N3iVs
http://bit.ly/Q4XY0
http://bit.ly/q7EwA
http://bit.ly/RWnFc
http://bit.ly/tdLyV
http://bit.ly/TEXC4
http://bit.ly/tSW62
http://bit.ly/ttrZ5
http://bit.ly/tvZ0h
http://bit.ly/V2q7R
http://bit.ly/Ve1jJ
http://bit.ly/VI7n6
http://bit.ly/Vs7Tb
http://bit.ly/xiUSr
http://bit.ly/xJEcE
http://bit.ly/xjIii
http://bit.ly/YdVa5
http://is.gd/1xL2e
http://is.gd/1xL2f
http://is.gd/1xL2g
http://is.gd/1xL2h
http://is.gd/1xL2i
http://is.gd/1xL2k
http://is.gd/1xL4B
http://is.gd/1xL4E
http://is.gd/1xL4F
http://is.gd/1xL4G
http://is.gd/1xL4L
http://is.gd/1xL6e
http://is.gd/1xL6m
http://is.gd/1xL6o
http://is.gd/1xL6r
http://is.gd/1xL6u
http://is.gd/1xL6z
http://is.gd/1xL8H
http://is.gd/1xL8t
http://is.gd/1xLaB
http://is.gd/1xLaE
http://is.gd/1xLaK
http://is.gd/1xLaO
http://is.gd/1xLaP
http://is.gd/1xLaW
http://is.gd/1xLcS
http://is.gd/1xLdc
http://is.gd/1xLdg
http://is.gd/1xLdh
http://is.gd/1xLdi
http://is.gd/1xLeX
http://is.gd/1xLff
http://is.gd/1xLfG
http://is.gd/1xLfx
http://jh.to/1obuti
http://jh.to/3ulofu
http://jh.to/4alo9u
http://jh.to/4u0axo
http://jh.to/4u9o8u
http://jh.to/5ayoja
http://jh.to/9eyisi
http://jh.to/9i8ika
http://jh.to/do0eba
http://jh.to/do9ihu
http://jh.to/ha6e0u
http://jh.to/je2a9e
http://jh.to/le8iha
http://jh.to/li3iju
http://jh.to/lozi1i
http://jh.to/rokoye
http://jh.to/vetagi
http://jh.to/xu5onu
http://jh.to/yekife
http://jh.to/yilizo
http://jh.to/zeximo
http://jtty.com/05i
http://jtty.com/0g8k
http://jtty.com/640z
http://jtty.com/6g0
http://jtty.com/90jm
http://jtty.com/aeuw
http://jtty.com/afn2
http://jtty.com/alr9
http://jtty.com/bhsv
http://jtty.com/cgt2
http://jtty.com/clx8
http://jtty.com/cn69
http://jtty.com/dhs9
http://jtty.com/dqr6
http://jtty.com/e2b0
http://jtty.com/e589
http://jtty.com/ehlm
http://jtty.com/ejn3
http://jtty.com/ely7
http://jtty.com/eu27
http://jtty.com/fruy
http://jtty.com/gkot
http://jtty.com/hklq
http://jtty.com/htx3
http://jtty.com/ilq3
http://jtty.com/ilw4
http://jtty.com/ix12
http://jtty.com/ixz6
http://jtty.com/jk17
http://jtty.com/knwz
http://jtty.com/lw56
http://jtty.com/lwz2
http://jtty.com/nrz1
http://jtty.com/ouxz
http://jtty.com/rsv9
http://jtty.com/tyz6
http://jtty.com/tz68
http://jtty.com/vyz2
http://jtty.com/wpz0
http://jtty.com/wt0h
http://jtty.com/y0q3
http://myurl.in/2SA9A
http://myurl.in/3Kgq3
http://myurl.in/3txkM
http://myurl.in/50WTX
http://myurl.in/6MUXd
http://myurl.in/6rP1t
http://myurl.in/8m00V
http://myurl.in/8QnMd
http://myurl.in/9ml8L
http://myurl.in/AhDeA
http://myurl.in/AKF1g
http://myurl.in/AMJBY
http://myurl.in/BCD7U
http://myurl.in/BM1RA
http://myurl.in/CcSAD
http://myurl.in/cooWR
http://myurl.in/drm2U
http://myurl.in/e0LIu
http://myurl.in/EcZlr
http://myurl.in/Ezbrh
http://myurl.in/Fk2Qs
http://myurl.in/H6xsv
http://myurl.in/HbY51
http://myurl.in/HiUfB
http://myurl.in/ivqVE
http://myurl.in/kr0Xn
http://myurl.in/L62hH
http://myurl.in/LUk5g
http://myurl.in/NWsMe
http://myurl.in/oa5Zo
http://myurl.in/Oq8Jj
http://myurl.in/pWVr8
http://myurl.in/q6qsq
http://myurl.in/rhChK
http://myurl.in/th2Gr
http://myurl.in/TSR8k
http://myurl.in/u8jyb
http://myurl.in/UzmYY
http://myurl.in/vppYC
http://myurl.in/wZoeF
http://myurl.in/XAj2y
http://myurl.in/xIIll
http://myurl.in/Y2Dc7
http://myurl.in/YbCtF
http://myurl.in/YG2Ny
http://myurl.in/yl4s2
http://myurl.in/yxj2l
http://o.ly/qT1
http://o.ly/qT3
http://o.ly/qT4
http://o.ly/qT5
http://o.ly/qT6
http://o.ly/qT7
http://o.ly/qT8
http://o.ly/qT9
http://o.ly/qTA
http://o.ly/qTb
http://o.ly/qTC
http://o.ly/qTH
http://o.ly/qTJ
http://o.ly/qTK
http://o.ly/qTm
http://o.ly/qTn
http://o.ly/qTO
http://o.ly/qTR
http://o.ly/qTS
http://o.ly/qTU
http://o.ly/qTV
http://o.ly/qTW
http://o.ly/qTX
http://o.ly/qYF
http://o.ly/qYh
http://o.ly/qYi
http://o.ly/qYm
http://o.ly/qYn
http://o.ly/qYo
http://o.ly/qYp
http://o.ly/qYq
http://o.ly/qYS
http://o.ly/qYt
http://o.ly/qYv
http://o.ly/qYw
http://o.ly/qYx
http://o.ly/qYy
http://phaze.me/0994
http://phaze.me/0cjw
http://phaze.me/0r08
http://phaze.me/11c7
http://phaze.me/1j84
http://phaze.me/1jy4
http://phaze.me/2dsc
http://phaze.me/2s08
http://phaze.me/2tq6
http://phaze.me/2xzx
http://phaze.me/3k5z
http://phaze.me/3r3k
http://phaze.me/3trj
http://phaze.me/3v4x
http://phaze.me/4kdb
http://phaze.me/4q59
http://phaze.me/5314
http://phaze.me/5jb1
http://phaze.me/6gjq
http://phaze.me/6n6p
http://phaze.me/836x
http://phaze.me/ckyd
http://phaze.me/d4nf
http://phaze.me/dj19
http://phaze.me/ffrn
http://phaze.me/fn86
http://phaze.me/g30w
http://phaze.me/g68v
http://phaze.me/gm36
http://phaze.me/hwjf
http://phaze.me/jh88
http://phaze.me/jrny
http://phaze.me/k12t
http://phaze.me/m9b6
http://phaze.me/nq7c
http://phaze.me/nt1x
http://phaze.me/nz1b
http://phaze.me/p0q0
http://phaze.me/pkkt
http://phaze.me/rm2y
http://phaze.me/t4wq
http://phaze.me/tqn0
http://phaze.me/v1b0
http://phaze.me/vm98
http://phaze.me/vmtm
http://phaze.me/vqqw
http://phaze.me/w736
http://phaze.me/xptc
http://phaze.me/yqnd
http://phaze.me/zh2v
http://sturly.com/aal0
http://sturly.com/aal1
http://sturly.com/aal2
http://sturly.com/aal5
http://sturly.com/aal6
http://sturly.com/aalm
http://sturly.com/aalq
http://sturly.com/aalr
http://sturly.com/aals
http://sturly.com/aalv
http://sturly.com/aalw
http://sturly.com/aalx
http://sturly.com/aaly
http://sturly.com/aalz
http://sturly.com/aama
http://sturly.com/aamb
http://sturly.com/aamc
http://sturly.com/aame
http://sturly.com/aamf
http://sturly.com/aamg
http://sturly.com/aamh
http://sturly.com/aami
http://sturly.com/aamk
http://sturly.com/aaml
http://sturly.com/aams
http://sturly.com/aamu
http://tcbp.net/s9
http://tcbp.net/sa
http://tcbp.net/sB
http://tcbp.net/sc
http://tcbp.net/sd
http://tcbp.net/sE
http://tcbp.net/sF
http://tcbp.net/sg
http://tcbp.net/sh
http://tcbp.net/sI
http://tcbp.net/sj
http://tcbp.net/sk
http://tcbp.net/sl
http://tcbp.net/sN
http://tcbp.net/sQ
http://tcbp.net/sS
http://tcbp.net/st
http://tcbp.net/sW
http://tcbp.net/sX
http://tcbp.net/sY
http://tcbp.net/t0
http://tcbp.net/t2
http://tcbp.net/t3
http://tcbp.net/t5
http://tcbp.net/t7
http://tcbp.net/t8
http://tcbp.net/t9
http://tcbp.net/ta
http://tcbp.net/tb
http://tcbp.net/tc
http://tcbp.net/te
http://tcbp.net/ti
http://tcbp.net/tj
http://tcbp.net/tk
http://tlink.me/1499
http://tlink.me/1500
http://tlink.me/1501
http://tlink.me/1502
http://tlink.me/1503
http://tlink.me/1504
http://tlink.me/1505
http://tlink.me/1507
http://tlink.me/1508
http://tlink.me/1510
http://tlink.me/1514
http://tlink.me/1515
http://tlink.me/1516
http://tlink.me/1517
http://tlink.me/1518
http://tlink.me/1519
http://tlink.me/1520
http://tlink.me/1525
http://tlink.me/1526
http://tlink.me/1527
http://tlink.me/1529
http://tlink.me/1530
http://tlink.me/1532
http://tlink.me/1533
http://tlink.me/1534
http://tlink.me/1537
http://tlink.me/1538
http://tlink.me/1540
http://tlink.me/1542
http://tlink.me/1543
http://tlink.me/1545
http://tlink.me/1549
http://tlink.me/1550
http://tlink.me/1554
http://tlink.me/1555
http://tlink.me/1557
http://tlink.me/1560
http://tlink.me/1563
http://tlink.me/1564
http://tlink.me/1565
http://tlink.me/1566
http://tlink.me/1567
http://tlink.me/1569
http://tlink.me/1570
http://tlink.me/1571
http://tlink.me/1572
http://tlink.me/1573
http://tlink.me/1574
http://tlink.me/1575
http://tlink.me/1576
http://urltwitter.com/1ipevu
http://urltwitter.com/2i7isa
http://urltwitter.com/4aza2o
http://urltwitter.com/4otifu
http://urltwitter.com/5ireri
http://urltwitter.com/6eyoco
http://urltwitter.com/6i3eko
http://urltwitter.com/bi3e7o
http://urltwitter.com/bixaso
http://urltwitter.com/fale2e
http://urltwitter.com/gu3eto
http://urltwitter.com/jafabu
http://urltwitter.com/jarewa
http://urltwitter.com/kedopu
http://urltwitter.com/kuno6o
http://urltwitter.com/me3ajo
http://urltwitter.com/nasozi
http://urltwitter.com/so3afi
http://urltwitter.com/vido6a
http://urltwitter.com/wulule
http://urltwitter.com/yucazo

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Trying a new setting. After turning on comments, I got about 20-30 comments per day that were all link spam. Sorry to require login, but the spam was too much.