Android.BackDoor.2213

Technical information

Malicious functions:

Executes code of the following detected threats:

Android.BackDoor.89
Android.DownLoader.546.origin

Network activity:

Connects to:

UDP(DNS) <Google DNS>
TCP(HTTP/1.1) u.k####.com:80
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) www.k####.com:80
TCP(HTTP/1.1) api.k####.com:8080
TCP(HTTP/1.1) a.appj####.com:80
TCP(HTTP/1.1) a####.k####.com:80
TCP(HTTP/1.1) apk.k####.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(TLS/1.0) 2####.58.211.110:443
TCP sdk.o####.t####.####.com:5224
TCP c####.g####.ig####.com:5227

DNS requests:

7j####.c####.z0.####.com
a####.k####.com
a.appj####.com
api.k####.com
apk.k####.com
c####.g####.ig####.com
sdk.o####.i####.####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
u.k####.com
www.k####.com

HTTP GET requests:

a####.k####.com/kktv/kkopp/product/part/icon/142_1553481259298.png
a####.k####.com/kktv/kkopp/product/part/icon/93_1536749456559.png
a####.k####.com/kktv/kkopp/product/part/icon/93_1536749516009.png
a####.k####.com/kktv/kkopp/product/part/icon/93_1536749541219.png
a####.k####.com/kktv/kkopp/product/part/icon/93_1536749554831.png
a####.k####.com/kktv/kkopp/product/part/icon/93_1536749585751.png
a####.k####.com/kktv/kkopp/product/part/icon/93_1536749626660.png
a####.k####.com/kktv/kkopp/product/part/icon/93_1536749641238.png
a####.k####.com/kktv/kkopp/product/part/icon/93_1536749662454.png
a####.k####.com/kktv/kkopp/product/part/icon/93_1536749701270.png
a####.k####.com/kktv/portrait/20181106/18/134043220_5045883.jpg!272
a####.k####.com/kktv/poster/20160919/16/7359562_5333771.jpg!272
a####.k####.com/kktv/poster/20170512/11/118755805_4914896.png!272
a####.k####.com/kktv/poster/20170601/14/86269111_22352.png!272
a####.k####.com/kktv/poster/20170825/1/95202888_716424.jpg!272
a####.k####.com/kktv/poster/20180530/16/136291374_455119.jpg!272
a####.k####.com/kktv/poster/20180630/19/136963311_3724158.jpg!272
a####.k####.com/kktv/poster/20180710/16/122868315_2138816.png!272
a####.k####.com/kktv/poster/20180828/23/94746769_359457.jpg!272
a####.k####.com/kktv/poster/20180921/17/131962422_5015484.jpg!272
a####.k####.com/kktv/poster/20180926/23/134033093_2324854.png!272
a####.k####.com/kktv/poster/20181011/16/11708822_292633.jpg!272
a####.k####.com/kktv/poster/20181012/20/74235189_2810188.jpg!272
a####.k####.com/kktv/poster/20181113/9/136996039_5456822.jpg!272
a####.k####.com/kktv/poster/20181222/16/134768235_4744756.jpg!272
a####.k####.com/kktv/poster/20190115/23/129566009_66241.jpg!272
a####.k####.com/kktv/poster/20190125/8/123155092_5954772.png!272
a####.k####.com/kktv/poster/20190202/15/127256596_5543363.jpg!272
a####.k####.com/kktv/poster/20190206/9/126782584_5312186.jpg!272
a####.k####.com/kktv/poster/20190226/15/142218321_330705.png!272
a####.k####.com/kktv/poster/20190307/19/27410548_5926931.png!272
a####.k####.com/kktv/poster/20190313/17/16210890_282919.jpg!272
a####.k####.com/kktv/poster/20190314/10/93874349_234542.jpg!272
a####.k####.com/kktv/poster/20190318/18/141273195_485118.jpg!272
a####.k####.com/kktv/poster/20190323/18/139365861_745169.jpg!272
a####.k####.com/kktv/poster/20190324/0/139300809_142390.jpg!272
a####.k####.com/kktv/poster/20190324/0/140403708_4837689.jpg!272
api.k####.com:8080/meShow/entrance?parameter=####
apk.k####.com/kkgame/mobile/config/config_a_zh_CN3.json
apk.k####.com/kkgame/mobile/guide/android/2017cj.jpg
apk.k####.com/share/mobile/config/config_a_zh_CN.json
t####.c####.q####.####.com/tdata_Cyl001
t####.c####.q####.####.com/tdata_KtX382
u.k####.com/md/LS
www.k####.com/CDN/output/M/1/I/20010302/P/a-1_c-4008_cataId-16_start-0_o...
www.k####.com/CDN/output/M/1/I/20010302/P/a-1_c-4008_cataId-172_start-0_...
www.k####.com/CDN/output/M/1/I/55000003/P/a-1_c-4008_start-0_offset-20_p...
www.k####.com/CDN/output/M/1/I/55000003/P/a-1_c-4008_start-20_offset-20_...
www.k####.com/CDN/output/M/1/I/55000004/P/a-1_c-4008_platform-2/json.js
www.k####.com/CDN/output/M/1440/I/10002006/P/a-1_c-4008_platform-2_isTop...

HTTP POST requests:

a.appj####.com/ad-service/ad/mark
sdk.o####.p####.####.com/api.php?format=####&t=####

File system changes:

Creates the following files:

/data/data/####/.jg.ic
/data/data/####/.log.lock
/data/data/####/.log.ls
/data/data/####/017219463629aec7c4bf7f8d8520051e277c0941bc06be6....0.tmp
/data/data/####/1354842e627a291d373aedd566016d5a402bac2dc4b594b....0.tmp
/data/data/####/155af1b7efd53c59799a3966bf4f337c721460320991248....0.tmp
/data/data/####/18debb7e69e2640332c8ea90cecb74a9f58a510232c25a8....0.tmp
/data/data/####/2e92dc748a812757c43ee00f413dd5cd470fd3a18747e60....0.tmp
/data/data/####/54562601cabb2f6b1ef65c5c175ea154ff9676e3a5fd089....0.tmp
/data/data/####/5c6beb17c644343b78f886251c4e9737ecd854f2882d471....0.tmp
/data/data/####/6518a5c7b5fc52f9c7624f4d5ca011d8aef062ea916bd91....0.tmp
/data/data/####/669b627495f403aa23e4b78e3c2bd1cde5df1c80cf5f23c....0.tmp
/data/data/####/7408e98428954e000f361375ca822d709c2c22ae77a0064....0.tmp
/data/data/####/748733cd3281bc5f8e71150dceae5dd8624c20f67fd41fd....0.tmp
/data/data/####/9aa30344fbb183110b7c95fdcf7023a5c09c44cd8102801....0.tmp
/data/data/####/9dd0fbc13d4607c951ac5236956b037444ec8994d65c1ca....0.tmp
/data/data/####/9febe9bf5fdca29c363dbf5f62cf02cef4bcfad732e3ee4....0.tmp
/data/data/####/StatService.xml
/data/data/####/ac851fe2db4b70c9ba66b335d872ef322332a0c101fa502....0.tmp
/data/data/####/b0c4b01f099fa130d0f4abd5e822936bd5ee104c0408f4f....0.tmp
/data/data/####/b7fa5c06a7cbd985927b5085f0ae544bde5fbfd02bcc734....0.tmp
/data/data/####/b9d3577fd6b28e3575cf5d0f536b36383724516bb562646....0.tmp
/data/data/####/ba01a6e5b7d68449a55e89c6e988866e112e5e0263fd40d....0.tmp
/data/data/####/cc.db
/data/data/####/cc.db-journal
/data/data/####/ce45a01037f5478d50e6e1a013f99322bee16edc9ec34d5....0.tmp
/data/data/####/cfb9ed9918e68919085bd1e8cee9978c34305f45432e3a0....0.tmp
/data/data/####/cfcb501d1d0fe00b30a32b027599c46a1e8b9bceeb51668....0.tmp
/data/data/####/com.xinxiu.yoy.phonelive.odex
/data/data/####/com.xinxiu.yoy.phonelive.zip
/data/data/####/d546175bd24670e8dd22db962ad8bd9c6be1dee2089db70....0.tmp
/data/data/####/d5c9cd07acd790a39ad0aa333097da410425ab70e615d2f....0.tmp
/data/data/####/dd456d28d0526ed5306821dfc9be156d81a284be346de57....0.tmp
/data/data/####/e70c85a552bef9cfba88542be4f4b8d8ef3874352cb8494....0.tmp
/data/data/####/f29a58f12615ad64ffea2f1d58eed6f62f1e92acb2f954b....0.tmp
/data/data/####/f673a27a9821a2c9379b3688a431225420c58afec74237c....0.tmp
/data/data/####/galhttprequest_database-journal
/data/data/####/game_config.txt
/data/data/####/gdaemon_20151105
/data/data/####/increment.db-journal
/data/data/####/init.pid
/data/data/####/jg_app_update_settings_random.xml
/data/data/####/journal.tmp
/data/data/####/libjiagu.so
/data/data/####/meshow_config.txt
/data/data/####/mobclick_agent_cached_com.xinxiu.yoy.phonelive80
/data/data/####/msp.db
/data/data/####/msp.db-journal
/data/data/####/multidex.version.xml
/data/data/####/push.pid
/data/data/####/pushext.db-journal
/data/data/####/pushg.db-journal
/data/data/####/pushsdk.db-journal
/data/data/####/run.pid
/data/data/####/setting.xml
/data/data/####/umeng_general_config.xml
/data/data/####/user_statistics.db-journal
/data/media/####/.nomedia
/data/media/####/5859499
/data/media/####/app.db
/data/media/####/cache_http%3A%2F%2Fares.kktv8.com%2Fkktv%2Fpor...%21272
/data/media/####/cache_http%3A%2F%2Fares.kktv8.com%2Fkktv%2Fpos...%21272
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/com.xinxiu.yoy.phonelive.db
/data/media/####/muc.log
/data/media/####/new_share_pic.jpg
/data/media/####/notification.aac
/data/media/####/tdata_Cyl001
/data/media/####/tdata_Cyl001.jar
/data/media/####/tdata_Cyl001.tmp
/data/media/####/tdata_KtX382
/data/media/####/tdata_KtX382.jar
/data/media/####/tdata_KtX382.tmp

Miscellaneous:

Executes the following shell scripts:

<Package Folder>/files/gdaemon_20151105 0 <Package>/com.igexin.sdk.PushService 25457 300 0
chmod 700 <Package Folder>/files/gdaemon_20151105
chmod 755 <Package Folder>/.jiagu/libjiagu.so
sh <Package Folder>/files/gdaemon_20151105 0 <Package>/com.igexin.sdk.PushService 25457 300 0

Loads the following dynamic libraries:

anw
encode
game
iomx
libjiagu
vlcjni

Uses the following algorithms to decrypt data:

AES-ECB-PKCS5Padding

Uses special library to hide executable bytecode.

Gets information about location.

Gets information about network.

Gets information about phone status (number, IMEI, etc.).

Gets information about APN settings.

Gets information about installed apps.

Adds tasks to the system scheduler.

Displays its own windows over windows of other apps.

Technologies

Terminology

Training and education

Myths

Technical information

Curing recommendations

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