Botnets adapt in wake of Twitter crackdown

Twitter botnets are having to adapt their behavior in the wake
of the platform’s crackdown.
NBC News
reports that on Thursday the platform
suspended hundreds of accounts acting in a network to tweet
messages of support for Saudi Arabia in the wake of the
disappearance of journalist Jamal Khashoggi. Experts quoted in
the report said that the bots operated in a way that allowed
them to “fly under the radar” to avoid Twitter’s bans.

Turkish investigators have
claimed that
Khashoggi was killed by Saudi agents
associated with the Saudi prince Mohammad Bin Salman during a
visit to the Saudi consulate in Istanbul. The Saudi government
vehemently denies these allegations, and it’s this version of
events that the botnet was amplifying. Twitter has now
suspended the bots brought to light by NBC News, as
well as other pro-Saudi government accounts, although it hasn’t
officially said who’s behind them.

These more sophisticated botnet tactics have become necessary
after Twitter started
cracking down
on the practice in February. The company
changed the rules of its platform to ban “identical or
substantially similar” tweets posted from multiple accounts, or
“bulk, aggressive, or very high-volume automated retweeting.”
As a result, this pro-Saudi botnet had to be more selective,
staggering activity to avoid spamming messages in a way that
made their automation look obvious.

The botnet, discovered by Josh Russell, also
exploited some well-known methods to spread its messages.
Namely, latching onto popular hashtags and helping to push them
to the top of Twitter’s trending topics. The report identifies
two trending Arabic hashtags which roughly translate to
“#We_all_trust_Mohammad_Bin_Salman,” and
“#unfollow_enemies_of_the_nation,” which the bots used to
spread their pro-Saudi messages more widely.

The botnet’s accounts don’t appear to have been created this
year. Many were produced in a short period in November 2017,
but others date back to 2012 and even 2011. An IT professional
quoted by NBC said it was “shocking” that the bots had been on
the platform for that long.

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