Number of known Symbian trojans double in one day

Symbian anti-virus specialist SimWorks announced that it has identified 52 previously unknown trojans for the Symbian platform in a single day, more than all of the trojans and other malware for Symbian based devices combined identified to date.

The trojans appear to be cracked versions of popular Symbian applications such as BitStorm, BugMe!, Cosmic Fighter, 3D Motoracer and SplashID. In addition to the installation files for the application itself, the files also include various versions of previously known malware such as Cabir and Locknut.

SimWorks CEO Aaron Davidson says “This is a significant development as until now we've usually found mobile trojans two or three at a time at the most. It would be easy for a malware writer to create 1 trojan and give it 52 different names however this is not the case here where we have 52 separately cracked and infected applications. Somebody has gone to an awful lot of time and effort to turn these out”.

“Previous mobile viruses have either been able to spread but cause no harm or alternatively have been able cause significant harm but not able to spread. It may be that producing large numbers of harmful trojans such as those we discovered today is a reaction by the writers to their inability to produce destructive viruses that can effectively spread. Obviously by producing large numbers of these things you greatly improve the odds of someone actually downloading and installing them”.

SimWorks has yet to receive any reports of the 52 trojans identified today in the wild.

“Until reports are received of these trojans in the wild there is little risk to end users” says Davidson. “From all appearances however these are ready to release now and putting all 52 onto a single site would make downloading from it like playing Russian roulette with your phone. Every other file could contain something that could cause your phone to be corrupted requiring a factory reset or worse and the loss of all your contacts and other data”.

All of the trojans identified are targeted at Series 60 phones using Symbian OS v6.1 or newer such as the Nokia 3650, 6600 and 6630. None of the trojans affect UIQ based Symbian phones such as the popular SonyEricsson P900/910 and Motorola A925/1000.

SimWorks advises that the mobile phone users take the usual precautions, including never accepting files from people they do not know and never downloading applications from unknown sources and crack sites.

Details of infected files identified:

2005-04-18 22:51 92412 91040 3D_miniGolf[1].1.01Crack.sis
2005-04-18 22:59 123211 120656 6630-SnapShot2[1].03.sis
2005-04-18 22:58 65020 63584 6630-VideoEditor210.sis
2005-04-18 22:44 82563 81040 Auto Pilot3[1].01full.sis
2005-04-18 22:56 92382 89392 Big-2 by__dotSiS.sis
2005-04-18 22:57 78955 77840 BitStorm_full1[1].0-XiMpda.sis
2005-04-18 22:57 82055 78784 Blocks_FullCrack.sis
2005-04-18 22:46 211381 210592 bluster III Full.sis
2005-04-18 22:43 197290 193712 BounceMP3_[1]NEW.sis
2005-04-18 22:58 69904 68224 BugMe1[1].23_Full_Dotsis.sis
2005-04-18 22:57 92313 91280 callcheater3[1].01-XiMpda.sis
2005-04-18 22:56 79253 77616 Chinese Star1[1].01Crack.sis
2005-04-18 22:45 192439 190256 ControlFreak2[1].0_Full.sis
2005-04-18 22:53 107010 106192 CosmicFighter3[1].0.sis
2005-04-18 22:56 92456 87328 CosmicFighter_Crack.sis
2005-04-18 22:52 107524 106640 Digital Red Bowling.sis
2005-04-18 22:47 186005 179984 DVD-to-NOKIA-6670.sis
2005-04-18 22:50 80973 80032 DVDPlayer2[1].01_FullCrack.sis
2005-04-18 22:56 90520 85872 FaceWave5[1].0_dotSiS.sis
2005-04-18 22:57 70084 69296 FlashLite[1].v1.1fullcrack.sis
2005-04-18 22:51 82469 80912 FreeCall_1[1].01-XiMpda.sis
2005-04-18 22:50 82352 80016 Fscaller5[1].01_Full_dotSiS.sis
2005-04-18 22:44 70868 69136 Funny Drawer2[1].00_Full.sis
2005-04-18 22:57 72303 70864 gina-v1[1].1fullcrack.sis
2005-04-18 22:55 82590 81488 HeliAttac101_Full_dotSiS.sis
2005-04-18 22:56 69410 68976 ImagePlus2[1].15_Full.sis
2005-04-18 22:55 253882 250960 Mahjong2[1].34.sis
2005-04-18 22:56 108969 105440 Mahjong301_Full_QmzXiz.sis
2005-04-18 22:49 77807 77088 matefinder_1[1].01-XiMpda.sis
2005-04-18 22:46 75691 74704 MessageStorer_CRACK.sis
2005-04-18 22:55 83206 79104 MotoRacer_Full.sis
2005-04-18 22:42 241210 240672 Mumsms4[1].01_XimPDA.sis
2005-04-18 22:46 75007 73552 pocketdictionary_V1.sis
2005-04-18 22:54 83551 80912 PowerGprs_3[1].01-dotSis.sis
2005-04-18 22:47 72056 68928 Quicksheet_cracked_S60.sis
2005-04-18 22:53 253912 252160 RubiksCube1[1].19Crack.sis
2005-04-18 22:42 185078 184608 Smart Movie263 S60[6630].sis
2005-04-18 22:47 69654 68832 SmartLauncher2[1].06s70.sis
2005-04-18 22:47 69654 68832 SmartLauncher2[2].06s70.sis
2005-04-18 22:54 89926 86976 Snowboard_FullCrack.sis
2005-04-18 22:44 254405 253664 Sony_Camcoder Pro_S60.sis
2005-04-18 22:48 72010 71376 SplashID_4[1].13_S60.sis
2005-04-18 22:48 69406 68752 Super Anti Virus 1[1].0 .sis
2005-04-18 22:50 82176 80752 SuperMario3_FullCrack.sis
2005-04-18 22:50 79329 78528 SuperMovie1[1].0_dotSiS.sis
2005-04-18 22:49 82795 81872 SuperMP31[1].0_dotSiS.sis
2005-04-18 22:49 86599 84912 supperNes_1[1].0_Beta_dotSiS.sis
2005-04-18 22:54 80253 79264 vBoy[1].v2.0.S60.oWnPDA.sis
2005-04-18 22:49 85969 84832 VNes[1].v2.0-XiMpda.sis
2005-04-18 22:49 97528 96960 XCaller_FullCrack.sis
2005-04-18 22:44 76269 74128 Yellow_YFtpC_2[1].33_SymTEE.sis
2005-04-18 22:48 92329 89952 ZipMan_full2[1].0-XiMpda.sis
#
# Total Size Packed Files
# 5552413 5458512 52