Sniffer, Spoofer & Portscanner

It's not necessarily an evil intention behind these actions: it's fully legit to check your own network for possible vulnerabilities. Maybe some intruder is already inside? Or there's some service running that shouldn't be? Did the admin forget to close some port in the firewall?

From scanning foreign networks without explicit permission you should refrain, though. Not only this could trigger some (false?) alert (as nobody would have expected your action), but also could have legal consequences. Oh: and don´t forget to be aware of „sniffers“ riding piggy-back on the apps (ad/analytics modules calling home)

In case those words don't mean anything to you, some short explanations:

Sniffing: intercept and log traffic passing over a digital network
Spoofing: pretend to be someone/something different than you are (masquerade as another by falsifying data)
Portscan: Looking for the "open barn door" (which ports are open?)

Network Sniffer

2023-01-21

Sniffer Proxymon [ROOT] (4.3@443) Ǥ 8 $Contains no trackers known to us \o/$ LastUpdate: 2020-06-08 transparent proxy
HttpCanary — Capture & Injection Master (4.1@5,102) 8 $Contains no trackers known to us \o/$ LastUpdate: 2020-10-28 User Manual
PCAPdroid - network monitor (3.9@571) Ǥ 11 $Contains no trackers known to us \o/$ Github; Kurzvorstellung 2/2021: Mike's »App des Monats«
Sniffer Wicap Demo (3.6@1,966) Ǥ 12 $Contains no trackers known to us \o/$ / Sniffer Wicap Pro (3.8@291; ~EUR 11.00) Ǥ 11 $Contains no trackers known to us \o/$
TestelDroid (3.6@16) 8 $Contains no trackers known to us \o/$ LastUpdate: 2017-03-27
tPacketCapture (3.5@1,348) 3 $Contains no trackers known to us \o/$ LastUpdate: 2015-02-06
Packet Capture (3.2@6,759) Ǥ 7 3 LastUpdate: 2019-12-26
RRCpacketSniffer (2.4@11) 3 $Contains no trackers known to us \o/$ LastUpdate: 2015-11-30
BLE-Monitor (0@0) 6 $Contains no trackers known to us \o/$ LastUpdate: 2020-11-26 Github
XLogger (0@0) 1 $Contains no trackers known to us \o/$ Github; Xposed module to sniff & record logs of NFC & Bluetooth communication on device
NetCloud (0@0) 4 $Contains no trackers known to us \o/$ LastUpdate: 2018-10-15 Github; proxy and package capturer
k3pler (0@0) 2 $Contains no trackers known to us \o/$ LastUpdate: 2019-07-02 Github; network connection blocker and packet analyzer
SerialTest (0@0) 9 $Contains no trackers known to us \o/$ Github

Network Spoofer

2023-01-21

Wi-Fi Privacy Police (4.3@1,203) 5 $Contains no trackers known to us \o/$ LastUpdate: 2016-10-08 Github; protects against WiFi tracking
Change My Mac Lite (4.2@1,617) Ǥ 10 3 LastUpdate: 2020-04-21 / Change My MAC - Spoof Wifi MAC (3.7@8,270) Ǥ 10 3 LastUpdate: 2020-04-26
Device Emulator (4.1@566) 6 3 LastUpdate: 2018-02-07 requires XPosed framework
ID Changer Exposed [No Reboot] (3.7@116) Ǥ 14 2 LastUpdate: 2017-07-02 IMEI, AndroidID, MACs
Phone Id Changer (3.6@2,191) 8 3 LastUpdate: 2017-03-18 change IDs shown to current WiFi
[root] Pry-Fi (3.3@6,953) Ǥ 10 $Contains no trackers known to us \o/$ LastUpdate: 2014-02-17 Vorstellung 2/2014; Intro 2/2014; Test 3/2014; protects against being WiFi-sniffed
Wifi Mac Changer (3.2@10,619) 5 1 LastUpdate: 2018-10-21
Ghost Phone (2.8@1,714) 4 1 LastUpdate: 2018-10-16 MediaTek IMEI/MAC changer
WiFi Spoofer (1.1@604) 3 3 LastUpdate: 2015-08-10
MACsposed (0@0) 0 $Contains no trackers known to us \o/$ Github
Network Ghost (0@0) 3 $Contains no trackers known to us \o/$ LastUpdate: 2016-09-01 Github; randomize MAC addresses

Port Scanner

2023-01-21

Network Tools Library Sample (5@39) 1 $Contains no trackers known to us \o/$ LastUpdate: 2020-04-01 Github; ping, WOL, portscan
Network Scanner (4.8@15,325) Ǥ 9 1
Network Mapper (4.4@257; ~EUR 1.25) 7 $Contains no trackers known to us \o/$ LastUpdate: 2018-01-13
NetX Network Tools (4.3@9,510) 12 $Contains no trackers known to us \o/$
Net Scan (4.3@8,275) Ǥ 10 1
Port Authority - Port Scanner (4.3@1,251) 5 $Contains no trackers known to us \o/$ / Port Authority (0@0) 5 $Contains no trackers known to us \o/$ Github
PortDroid (4.2@1,823) Ǥ 9 1
Network Scanner (3.8@17,976) Ǥ 10 3 LastUpdate: 2020-08-16
Network IP Scanner (3.8@6,025) Ǥ 10 3 LastUpdate: 2020-05-21
Network Scanner & Port Monitor (3.8@20) 5 $Contains no trackers known to us \o/$ LastUpdate: 2018-12-29
Port Scanner (3.4@1,637) 4 1 LastUpdate: 2018-02-10 / Port Scanner Donate (4.4@16; ~EUR 3.00) 4 $Contains no trackers known to us \o/$ LastUpdate: 2018-02-10
devolo NetScanner (3.3@244) 5 1 LastUpdate: 2018-03-13
Network Tool (3.3@123) Ǥ 5 2 LastUpdate: 2018-10-27
Port Scanner (3.3@15) 2 1 LastUpdate: 2016-08-13
TCP Port Scanner (3.2@9) 3 $Contains no trackers known to us \o/$ LastUpdate: 2018-10-04
Angry IP Scanner (3@966) Ǥ 6 2 LastUpdate: 2018-03-25
CCTV Port Scanner (2.3@677) Ǥ 5 3 LastUpdate: 2019-01-15
UDP Port Scanner Beta (1@181) 3 3 LastUpdate: 2016-08-02
Port Scanner (0@0) 1 $Contains no trackers known to us \o/$ LastUpdate: 2021-06-09 Github
Vernet - Network Analyzer (0@0) 4 $Contains no trackers known to us \o/$ Github

Protection agains WiFi attacks

2023-01-18

ARP Guard (WiFi Security) (4.4@11,458) Ǥ 14 $Contains no trackers known to us \o/$ LastUpdate: 2021-02-10

Further Readings:

App Verbindungen mitschneiden auf Android und iOS (4/2016)

2023-01-24

IzzyOnDroid