How to insert fake calls into the iPhone call log history

The iPhone Wiki has an article about the call history database, which is outdated at the time of this writing, but does indicate that it’s a SQLite database. My iPhone had this file, which I could open and read rows from with the given schema, but there were no rows!

After some more digging, I found this post in /r/jailbreakdevelopers which reveals that the location and schema of the SQLite database has changed as of iOS 8.3.

My device is the last version of iOS 8 (I am a jailbreak hold-out and missed the window for the iOS 9 update + JB).

Armed with the true location, I could continue to analyze and hopefully modify the database file correctly.

First thing I did was get openssh server running on my iPhone (available through Cydia).

Then I created a directory and downloaded the database directory.

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scp -r root@172.20.10.2:/var/mobile/Library/CallHistoryDB .

Because I know I will make a lot of mistakes, I initialized a git repo and checked the files in. This way I could use git to reset my get the original, untainted database back at any time.

Next I created this Makefile so I could rapidly iterate, sending the modified database to my phone.

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all: reset modify push
reset:
git checkout CallHistoryDB/*
push:
scp CallHistoryDB/CallHistory.* root@172.20.10.2:/var/mobile/Library/CallHistoryDB/
modify:
ruby insert.rb

Next I examined the database with a text editor to determine the schema… I extracted it out to a text file:

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CREATE TABLE ZCALLRECORD (
Z_PK INTEGER PRIMARY KEY,
Z_ENT INTEGER,
Z_OPT INTEGER,
ZANSWERED INTEGER,
ZCALLTYPE INTEGER,
ZDISCONNECTED_CAUSE INTEGER,
ZFACE_TIME_DATA INTEGER,
ZNUMBER_AVAILABILITY INTEGER,
ZORIGINATED INTEGER,
ZREAD INTEGER,
ZDATE TIMESTAMP,
ZDURATION FLOAT,
ZADDRESS VARCHAR,
ZDEVICE_ID VARCHAR,
ZISO_COUNTRY_CODE VARCHAR,
ZNAME VARCHAR,
ZUNIQUE_ID VARCHAR
)

Next I created my ruby script. Basically I open the database, print the rows, insert a row, then print the rows again.

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require "sqlite3"
db = SQLite3::Database.new "CallHistoryDB/CallHistory.storedata"
db.execute("select * from zcallrecord") do |row|
p row
end
db.execute(%{
INSERT INTO zcallrecord (
Z_ENT,
Z_OPT,
ZANSWERED,
ZCALLTYPE,
ZDISCONNECTED_CAUSE,
ZFACE_TIME_DATA,
ZNUMBER_AVAILABILITY,
ZORIGINATED,
ZREAD,
ZDATE,
ZDURATION,
ZADDRESS,
ZDEVICE_ID,
ZISO_COUNTRY_CODE,
ZNAME,
ZUNIQUE_ID
) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)}, [
2, 1, 1, 1, nil, nil, 0, 0, 1, 475200000, 60.0, "+17277531234", nil, "us", nil, "58918CBA-C9C1-479B-8B6D-9DD1FD70E293"
])
db.execute("select * from zcallrecord") do |row|
p row
end

I then ran make until I had all my inputs correct and the call log was modified appropriately. Be sure to close the “Phone App” each time, so that it reads from the database file again.