Adware.Gexin.21131

Adware.Gexin.21131

Added to the Dr.Web virus database: 2021-05-02

Virus description added: 2021-05-02

Malicious functions:

Executes code of the following detected threats:

Network activity:

Connects to:

UDP(DNS) 8####.8.4.4:53
TCP(HTTP/1.1) d####.c####.l####.####.com:80
TCP(TLS/1.0) al####.u####.com:443
TCP(TLS/1.0) md####.google####.com:443
TCP(TLS/1.0) 2####.58.211.106:443
TCP(TLS/1.0) dualsta####.wagbr####.ali####.####.com:443
TCP(TLS/1.0) android####.go####.com:443
TCP(TLS/1.0) p####.google####.com:443
TCP(TLS/1.0) 1####.250.179.202:443
TCP(TLS/1.0) 1####.250.179.206:443
TCP(TLS/1.0) instant####.google####.com:443
TCP(TLS/1.2) md####.google####.com:443
TCP(TLS/1.2) 1####.250.179.206:443
TCP(TLS/1.2) 2####.58.211.106:443
TCP(TLS/1.2) 1####.250.179.163:443
TCP sdk.o####.t####.####.net:5224

DNS requests:

HTTP GET requests:

File system changes:

Creates the following files:

Miscellaneous:

Executes the following shell scripts:

/system/bin/cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq
/system/bin/cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_min_freq
/system/bin/dex2oat --instruction-set=x86 --dex-file=<Package Folder>/.jiagu/classes.dex --dex-file=<Package Folder>/.jiagu/classes2.dex --oat-file=<Package Folder>/.jiagu/classes.oat --inline-depth-limit=0 --compiler-filter=speed
chmod 755 <Package Folder>/.jiagu/libjiagu.so
ls /
ls /sys/class/thermal

Uses the following algorithms to encrypt data:

Uses the following algorithms to decrypt data:

Accesses the ITelephony private interface.

Uses special library to hide executable bytecode.

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

Displays its own windows over windows of other apps.

Requests the system alert window permission.